87792837640 has 32 divisors (see below), whose sum is σ = 200316058560. Its totient is φ = 34622526400.

The previous prime is 87792837637. The next prime is 87792837679. The reversal of 87792837640 is 4673829778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15453646 + ... + 15459325.

It is an arithmetic number, because the mean of its divisors is an integer number (6259876830).

Almost surely, 2^87792837640 is an apocalyptic number.

It is an amenable number.

87792837640 is an abundant number, since it is smaller than the sum of its proper divisors (112523220920).

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

87792837640 is a wasteful number, since it uses less digits than its factorization.

87792837640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30913053 (or 30913049 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 61.

The spelling of 87792837640 in words is "eighty-seven billion, seven hundred ninety-two million, eight hundred thirty-seven thousand, six hundred forty".