86887423251 has 32 divisors (see below), whose sum is σ = 130385445120. Its totient is φ = 57180287232.

The previous prime is 86887423243. The next prime is 86887423267. The reversal of 86887423251 is 15232478868.

It is not a de Polignac number, because 86887423251 - 2³ = 86887423243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86887423211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764451 + ... + 870723.

It is an arithmetic number, because the mean of its divisors is an integer number (4074545160).

Almost surely, 2^86887423251 is an apocalyptic number.

86887423251 is a deficient number, since it is larger than the sum of its proper divisors (43498021869).

86887423251 is a wasteful number, since it uses less digits than its factorization.

86887423251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106672 (or 106666 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 86887423251 in words is "eighty-six billion, eight hundred eighty-seven million, four hundred twenty-three thousand, two hundred fifty-one".