87692520906 has 12 divisors (see below), whose sum is σ = 190000462002. Its totient is φ = 29230840296.

The previous prime is 87692520887. The next prime is 87692520917. The reversal of 87692520906 is 60902529678.

It can be written as a sum of positive squares in only one way, i.e., 79783086681 + 7909434225 = 282459^2 + 88935^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon 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 5 ways as a sum of consecutive naturals, for example, 2435903341 + ... + 2435903376.

Almost surely, 2^87692520906 is an apocalyptic number.

87692520906 is an abundant number, since it is smaller than the sum of its proper divisors (102307941096).

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

87692520906 is a wasteful number, since it uses less digits than its factorization.

87692520906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871806725 (or 4871806722 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 87692520906 in words is "eighty-seven billion, six hundred ninety-two million, five hundred twenty thousand, nine hundred six".