87332468139 has 24 divisors (see below), whose sum is σ = 149507438080. Its totient is φ = 49904266536.

The previous prime is 87332468099. The next prime is 87332468141. The reversal of 87332468139 is 93186423378.

It is not a de Polignac number, because 87332468139 - 2⁹ = 87332467627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87332468239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25669219 + ... + 25672620.

Almost surely, 2^87332468139 is an apocalyptic number.

87332468139 is a deficient number, since it is larger than the sum of its proper divisors (62174969941).

87332468139 is an equidigital number, since it uses as much as digits as its factorization.

87332468139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51341861 (or 51341849 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 87332468139 in words is "eighty-seven billion, three hundred thirty-two million, four hundred sixty-eight thousand, one hundred thirty-nine".