15397827418580 has 12 divisors (see below), whose sum is σ = 32335437579060. Its totient is φ = 6159130967424.

The previous prime is 15397827418579. The next prime is 15397827418643. The reversal of 15397827418580 is 8581472879351.

It can be written as a sum of positive squares in 2 ways, for example, as 12254844478864 + 3142982939716 = 3500692^2 + 1772846^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15397827418580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384945685445 + ... + 384945685484.

It is an arithmetic number, because the mean of its divisors is an integer number (2694619798255).

Almost surely, 2^{15397827418580} is an apocalyptic number.

15397827418580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15397827418580 is an abundant number, since it is smaller than the sum of its proper divisors (16937610160480).

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

15397827418580 is a wasteful number, since it uses less digits than its factorization.

15397827418580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769891370938 (or 769891370936 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 68.

The spelling of 15397827418580 in words is "fifteen trillion, three hundred ninety-seven billion, eight hundred twenty-seven million, four hundred eighteen thousand, five hundred eighty".