1231498762560 has 896 divisors, whose sum is σ = 5030695226880. Its totient is φ = 280284364800.

The previous prime is 1231498762547. The next prime is 1231498762573. The reversal of 1231498762560 is 652678941321.

It is a happy number.

1231498762560 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 4 + 9 + 8 + 7 + 625 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1231498762547) and next prime (1231498762573).

It is a super-2 number, since 2×1231498762560² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1231498762497 and 1231498762506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 932246700 + ... + 932248020.

It is a 1-persistent number, because it is pandigital, but 2⋅1231498762560 = 2462997525120 is not.

Almost surely, 2^{1231498762560} is an apocalyptic number.

1231498762560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231498762560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515347613440).

1231498762560 is an abundant number, since it is smaller than the sum of its proper divisors (3799196464320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231498762560 is a wasteful number, since it uses less digits than its factorization.

1231498762560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1231498762560 in words is "one trillion, two hundred thirty-one billion, four hundred ninety-eight million, seven hundred sixty-two thousand, five hundred sixty".