87922434291 has 16 divisors (see below), whose sum is σ = 121280885760. Its totient is φ = 56589755040.

The previous prime is 87922434227. The next prime is 87922434307. The reversal of 87922434291 is 19243422978.

It is a happy number.

It is not a de Polignac number, because 87922434291 - 2⁶ = 87922434227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87922434221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1669086 + ... + 1720956.

It is an arithmetic number, because the mean of its divisors is an integer number (7580055360).

Almost surely, 2^87922434291 is an apocalyptic number.

87922434291 is a deficient number, since it is larger than the sum of its proper divisors (33358451469).

87922434291 is a wasteful number, since it uses less digits than its factorization.

87922434291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71386.

The product of its digits is 1741824, while the sum is 51.

The spelling of 87922434291 in words is "eighty-seven billion, nine hundred twenty-two million, four hundred thirty-four thousand, two hundred ninety-one".