87616581976 has 32 divisors (see below), whose sum is σ = 204817985280. Its totient is φ = 34136330400.

The previous prime is 87616581971. The next prime is 87616582019. The reversal of 87616581976 is 67918561678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87616581971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71116740 + ... + 71117971.

It is an arithmetic number, because the mean of its divisors is an integer number (6400562040).

Almost surely, 2^87616581976 is an apocalyptic number.

It is an amenable number.

87616581976 is an abundant number, since it is smaller than the sum of its proper divisors (117201403304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87616581976 is a wasteful number, since it uses less digits than its factorization.

87616581976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142234735 (or 142234731 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

The spelling of 87616581976 in words is "eighty-seven billion, six hundred sixteen million, five hundred eighty-one thousand, nine hundred seventy-six".