15178928768940 has 96 divisors (see below), whose sum is σ = 44585799874560. Its totient is φ = 3853093753600.

The previous prime is 15178928768921. The next prime is 15178928768947. The reversal of 15178928768940 is 4986782987151.

It is not an unprimeable number, because it can be changed into a prime (15178928768947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61309716 + ... + 61556795.

It is an arithmetic number, because the mean of its divisors is an integer number (464435415360).

Almost surely, 2^{15178928768940} is an apocalyptic number.

15178928768940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15178928768940 is an abundant number, since it is smaller than the sum of its proper divisors (29406871105620).

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

15178928768940 is a wasteful number, since it uses less digits than its factorization.

15178928768940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122866623 (or 122866621 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 75.

The spelling of 15178928768940 in words is "fifteen trillion, one hundred seventy-eight billion, nine hundred twenty-eight million, seven hundred sixty-eight thousand, nine hundred forty".