1153975897620 has 480 divisors, whose sum is σ = 4522002955008. Its totient is φ = 239840206848.

The previous prime is 1153975897619. The next prime is 1153975897649. The reversal of 1153975897620 is 267985793511.

1153975897620 is a `hidden beast` number, since 1 + 1 + 539 + 7 + 5 + 8 + 9 + 76 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9818724 + ... + 9935556.

Almost surely, 2^{1153975897620} is an apocalyptic number.

1153975897620 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 1153975897620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2261001477504).

1153975897620 is an abundant number, since it is smaller than the sum of its proper divisors (3368027057388).

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

1153975897620 is a wasteful number, since it uses less digits than its factorization.

1153975897620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116941 (or 116930 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 1153975897620 in words is "one trillion, one hundred fifty-three billion, nine hundred seventy-five million, eight hundred ninety-seven thousand, six hundred twenty".