87900015550 has 48 divisors (see below), whose sum is σ = 173244000960. Its totient is φ = 33066408960.

The previous prime is 87900015547. The next prime is 87900015557. The reversal of 87900015550 is 5551000978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87900015557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1088986 + ... + 1166914.

It is an arithmetic number, because the mean of its divisors is an integer number (3609250020).

Almost surely, 2^87900015550 is an apocalyptic number.

87900015550 is a deficient number, since it is larger than the sum of its proper divisors (85343985410).

87900015550 is a wasteful number, since it uses less digits than its factorization.

87900015550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79285 (or 79280 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 87900015550 in words is "eighty-seven billion, nine hundred million, fifteen thousand, five hundred fifty".