87109838025 has 96 divisors (see below), whose sum is σ = 171817574400. Its totient is φ = 38103436800.

The previous prime is 87109837987. The next prime is 87109838063. The reversal of 87109838025 is 52083890178.

It is an interprime number because it is at equal distance from previous prime (87109837987) and next prime (87109838063).

It is not a de Polignac number, because 87109838025 - 2²¹ = 87107740873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1418406 + ... + 1478544.

It is an arithmetic number, because the mean of its divisors is an integer number (1789766400).

Almost surely, 2^87109838025 is an apocalyptic number.

It is an amenable number.

87109838025 is a deficient number, since it is larger than the sum of its proper divisors (84707736375).

87109838025 is a wasteful number, since it uses less digits than its factorization.

87109838025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60279 (or 60274 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 87109838025 in words is "eighty-seven billion, one hundred nine million, eight hundred thirty-eight thousand, twenty-five".