87550639948 has 12 divisors (see below), whose sum is σ = 162226185912. Its totient is φ = 41200301120.

The previous prime is 87550639877. The next prime is 87550639963. The reversal of 87550639948 is 84993605578.

It is a super-2 number, since 2×87550639948² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87550639948.

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, 643754638 + ... + 643754773.

It is an arithmetic number, because the mean of its divisors is an integer number (13518848826).

Almost surely, 2^87550639948 is an apocalyptic number.

It is an amenable number.

87550639948 is a deficient number, since it is larger than the sum of its proper divisors (74675545964).

87550639948 is a wasteful number, since it uses less digits than its factorization.

87550639948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287509432 (or 1287509430 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 87550639948 in words is "eighty-seven billion, five hundred fifty million, six hundred thirty-nine thousand, nine hundred forty-eight".