87980233091 has 8 divisors (see below), whose sum is σ = 89858565120. Its totient is φ = 86102168328.

The previous prime is 87980233079. The next prime is 87980233157. The reversal of 87980233091 is 19033208978.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87980233091 - 2³⁰ = 86906491267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87980233021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688790 + ... + 806468.

It is an arithmetic number, because the mean of its divisors is an integer number (11232320640).

Almost surely, 2^87980233091 is an apocalyptic number.

87980233091 is a deficient number, since it is larger than the sum of its proper divisors (1878332029).

87980233091 is a wasteful number, since it uses less digits than its factorization.

87980233091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133633.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 87980233091 in words is "eighty-seven billion, nine hundred eighty million, two hundred thirty-three thousand, ninety-one".