87920800880 has 40 divisors (see below), whose sum is σ = 222999124464. Its totient is φ = 31971200000.

The previous prime is 87920800819. The next prime is 87920800921. The reversal of 87920800880 is 8800802978.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49954121 + ... + 49955880.

Almost surely, 2^87920800880 is an apocalyptic number.

87920800880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87920800880 is an abundant number, since it is smaller than the sum of its proper divisors (135078323584).

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

87920800880 is a wasteful number, since it uses less digits than its factorization.

87920800880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99910025 (or 99910019 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 87920800880 in words is "eighty-seven billion, nine hundred twenty million, eight hundred thousand, eight hundred eighty".