86938343942 has 4 divisors (see below), whose sum is σ = 130407515916. Its totient is φ = 43469171970.

The previous prime is 86938343911. The next prime is 86938343959. The reversal of 86938343942 is 24934383968.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21734585984 + ... + 21734585987.

It is an arithmetic number, because the mean of its divisors is an integer number (32601878979).

Almost surely, 2^86938343942 is an apocalyptic number.

86938343942 is a deficient number, since it is larger than the sum of its proper divisors (43469171974).

86938343942 is a wasteful number, since it uses less digits than its factorization.

86938343942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43469171973.

The product of its digits is 26873856, while the sum is 59.

The spelling of 86938343942 in words is "eighty-six billion, nine hundred thirty-eight million, three hundred forty-three thousand, nine hundred forty-two".