87266136004 has 24 divisors (see below), whose sum is σ = 155615667480. Its totient is φ = 42804712704.

The previous prime is 87266135969. The next prime is 87266136043. The reversal of 87266136004 is 40063166278.

It can be written as a sum of positive squares in 4 ways, for example, as 27939791104 + 59326344900 = 167152^2 + 243570^2 .

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, 2268192 + ... + 2306344.

It is an arithmetic number, because the mean of its divisors is an integer number (6483986145).

Almost surely, 2^87266136004 is an apocalyptic number.

It is an amenable number.

87266136004 is a deficient number, since it is larger than the sum of its proper divisors (68349531476).

87266136004 is a wasteful number, since it uses less digits than its factorization.

87266136004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48999 (or 48997 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 87266136004 in words is "eighty-seven billion, two hundred sixty-six million, one hundred thirty-six thousand, four".