102157042828 has 12 divisors (see below), whose sum is σ = 180182501632. Its totient is φ = 50676328080.

The previous prime is 102157042739. The next prime is 102157042837. The reversal of 102157042828 is 828240751201.

It is a super-2 number, since 2×102157042828² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 100547763 + ... + 100548778.

Almost surely, 2^102157042828 is an apocalyptic number.

It is an amenable number.

102157042828 is a deficient number, since it is larger than the sum of its proper divisors (78025458804).

102157042828 is a wasteful number, since it uses less digits than its factorization.

102157042828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201096672 (or 201096670 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 102157042828 in words is "one hundred two billion, one hundred fifty-seven million, forty-two thousand, eight hundred twenty-eight".