87239822307 has 48 divisors (see below), whose sum is σ = 129808106400. Its totient is φ = 52067473920.

The previous prime is 87239822297. The next prime is 87239822309. The reversal of 87239822307 is 70322893278.

It is not a de Polignac number, because 87239822307 - 2⁸ = 87239822051 is a prime.

It is a super-5 number, since 5×87239822307⁵ (a number of 56 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 87239822307.

It is not an unprimeable number, because it can be changed into a prime (87239822309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20057569 + ... + 20061917.

It is an arithmetic number, because the mean of its divisors is an integer number (2704335550).

Almost surely, 2^87239822307 is an apocalyptic number.

87239822307 is a deficient number, since it is larger than the sum of its proper divisors (42568284093).

87239822307 is a wasteful number, since it uses less digits than its factorization.

87239822307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204 (or 5193 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 87239822307 in words is "eighty-seven billion, two hundred thirty-nine million, eight hundred twenty-two thousand, three hundred seven".