157857023128 has 32 divisors (see below), whose sum is σ = 338277807360. Its totient is φ = 67650458400.

The previous prime is 157857023089. The next prime is 157857023153. The reversal of 157857023128 is 821320758751.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2802975 + ... + 2858737.

It is an arithmetic number, because the mean of its divisors is an integer number (10571181480).

Almost surely, 2^157857023128 is an apocalyptic number.

It is an amenable number.

157857023128 is an abundant number, since it is smaller than the sum of its proper divisors (180420784232).

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

157857023128 is a wasteful number, since it uses less digits than its factorization.

157857023128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106327 (or 106323 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 157857023128 in words is "one hundred fifty-seven billion, eight hundred fifty-seven million, twenty-three thousand, one hundred twenty-eight".