1298782936080 has 480 divisors, whose sum is σ = 5298239890944. Its totient is φ = 278334849024.

The previous prime is 1298782936069. The next prime is 1298782936109. The reversal of 1298782936080 is 806392878921.

1298782936080 is a `hidden beast` number, since 12 + 9 + 8 + 7 + 8 + 2 + 9 + 3 + 608 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1298782935999 and 1298782936017.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22505022 + ... + 22562658.

Almost surely, 2^{1298782936080} is an apocalyptic number.

1298782936080 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 1298782936080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2649119945472).

1298782936080 is an abundant number, since it is smaller than the sum of its proper divisors (3999456954864).

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

1298782936080 is a wasteful number, since it uses less digits than its factorization.

1298782936080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57943 (or 57934 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 1298782936080 in words is "one trillion, two hundred ninety-eight billion, seven hundred eighty-two million, nine hundred thirty-six thousand, eighty".