102157672571 has 8 divisors (see below), whose sum is σ = 107616694080. Its totient is φ = 96706881288.

The previous prime is 102157672537. The next prime is 102157672577. The reversal of 102157672571 is 175276751201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102157672571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102157672577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032061 + ... + 2081726.

It is an arithmetic number, because the mean of its divisors is an integer number (13452086760).

Almost surely, 2^102157672571 is an apocalyptic number.

102157672571 is a deficient number, since it is larger than the sum of its proper divisors (5459021509).

102157672571 is a wasteful number, since it uses less digits than its factorization.

102157672571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115113.

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 102157672571 in words is "one hundred two billion, one hundred fifty-seven million, six hundred seventy-two thousand, five hundred seventy-one".