102857147625 has 32 divisors (see below), whose sum is σ = 171186387840. Its totient is φ = 54846859200.

The previous prime is 102857147573. The next prime is 102857147629. The reversal of 102857147625 is 526741758201.

It is a de Polignac number, because none of the positive numbers 2^k-102857147625 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102857147629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2243431 + ... + 2288819.

It is an arithmetic number, because the mean of its divisors is an integer number (5349574620).

Almost surely, 2^102857147625 is an apocalyptic number.

102857147625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102857147625 is a deficient number, since it is larger than the sum of its proper divisors (68329240215).

102857147625 is an equidigital number, since it uses as much as digits as its factorization.

102857147625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51450 (or 51440 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 102857147625 in words is "one hundred two billion, eight hundred fifty-seven million, one hundred forty-seven thousand, six hundred twenty-five".