87071313251 has 16 divisors (see below), whose sum is σ = 97571101824. Its totient is φ = 77179200384.

The previous prime is 87071313227. The next prime is 87071313283. The reversal of 87071313251 is 15231317078.

It is not a de Polignac number, because 87071313251 - 2³⁰ = 85997571427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87071313211) 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 15 ways as a sum of consecutive naturals, for example, 1312016 + ... + 1376781.

It is an arithmetic number, because the mean of its divisors is an integer number (6098193864).

Almost surely, 2^87071313251 is an apocalyptic number.

87071313251 is a deficient number, since it is larger than the sum of its proper divisors (10499788573).

87071313251 is a wasteful number, since it uses less digits than its factorization.

87071313251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688910.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 87071313251 in words is "eighty-seven billion, seventy-one million, three hundred thirteen thousand, two hundred fifty-one".