157719728724 has 24 divisors (see below), whose sum is σ = 376571136480. Its totient is φ = 51350609184.

The previous prime is 157719728701. The next prime is 157719728741. The reversal of 157719728724 is 427827917751.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152828679 + ... + 152829710.

It is an arithmetic number, because the mean of its divisors is an integer number (15690464020).

Almost surely, 2^157719728724 is an apocalyptic number.

It is an amenable number.

157719728724 is an abundant number, since it is smaller than the sum of its proper divisors (218851407756).

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

157719728724 is a wasteful number, since it uses less digits than its factorization.

157719728724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305658439 (or 305658437 counting only the distinct ones).

The product of its digits is 13829760, while the sum is 60.

The spelling of 157719728724 in words is "one hundred fifty-seven billion, seven hundred nineteen million, seven hundred twenty-eight thousand, seven hundred twenty-four".