87999133692 has 24 divisors (see below), whose sum is σ = 211954903552. Its totient is φ = 28386817200.

The previous prime is 87999133667. The next prime is 87999133711. The reversal of 87999133692 is 29633199978.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118278034 + ... + 118278777.

Almost surely, 2^87999133692 is an apocalyptic number.

It is an amenable number.

87999133692 is an abundant number, since it is smaller than the sum of its proper divisors (123955769860).

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

87999133692 is a wasteful number, since it uses less digits than its factorization.

87999133692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236556849 (or 236556847 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 66.

The spelling of 87999133692 in words is "eighty-seven billion, nine hundred ninety-nine million, one hundred thirty-three thousand, six hundred ninety-two".