87216737280 has 88 divisors (see below), whose sum is σ = 278957332272. Its totient is φ = 23257792512.

The previous prime is 87216737269. The next prime is 87216737297. The reversal of 87216737280 is 8273761278.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2823727 + ... + 2854446.

Almost surely, 2^87216737280 is an apocalyptic number.

87216737280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87216737280 is an abundant number, since it is smaller than the sum of its proper divisors (191740594992).

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

87216737280 is a wasteful number, since it uses less digits than its factorization.

87216737280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678201 (or 5678183 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 87216737280 in words is "eighty-seven billion, two hundred sixteen million, seven hundred thirty-seven thousand, two hundred eighty".