86399423538 has 32 divisors (see below), whose sum is σ = 173960778816. Its totient is φ = 28606632768.

The previous prime is 86399423507. The next prime is 86399423567. The reversal of 86399423538 is 83532499368.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 664945 + ... + 784187.

It is an arithmetic number, because the mean of its divisors is an integer number (5436274338).

Almost surely, 2^86399423538 is an apocalyptic number.

86399423538 is an abundant number, since it is smaller than the sum of its proper divisors (87561355278).

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

86399423538 is a wasteful number, since it uses less digits than its factorization.

86399423538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120058.

The product of its digits is 33592320, while the sum is 60.

The spelling of 86399423538 in words is "eighty-six billion, three hundred ninety-nine million, four hundred twenty-three thousand, five hundred thirty-eight".