87888710631 has 4 divisors (see below), whose sum is σ = 117184947512. Its totient is φ = 58592473752.

The previous prime is 87888710587. The next prime is 87888710653. The reversal of 87888710631 is 13601788878.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87888710631 - 2¹⁰ = 87888709607 is a prime.

It is a super-2 number, since 2×87888710631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87888710531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14648118436 + ... + 14648118441.

It is an arithmetic number, because the mean of its divisors is an integer number (29296236878).

Almost surely, 2^87888710631 is an apocalyptic number.

87888710631 is a deficient number, since it is larger than the sum of its proper divisors (29296236881).

87888710631 is a wasteful number, since it uses less digits than its factorization.

87888710631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29296236880.

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 87888710631 in words is "eighty-seven billion, eight hundred eighty-eight million, seven hundred ten thousand, six hundred thirty-one".