87920917088 has 24 divisors (see below), whose sum is σ = 173257208208. Its totient is φ = 43919086464.

The previous prime is 87920917061. The next prime is 87920917157. The reversal of 87920917088 is 88071902978.

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 3 ways as a sum of consecutive naturals, for example, 1258331 + ... + 1326362.

It is an arithmetic number, because the mean of its divisors is an integer number (7219050342).

Almost surely, 2^87920917088 is an apocalyptic number.

It is an amenable number.

87920917088 is a deficient number, since it is larger than the sum of its proper divisors (85336291120).

87920917088 is a wasteful number, since it uses less digits than its factorization.

87920917088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585766 (or 2585758 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 59.

The spelling of 87920917088 in words is "eighty-seven billion, nine hundred twenty million, nine hundred seventeen thousand, eighty-eight".