86507857938 has 8 divisors (see below), whose sum is σ = 173015715888. Its totient is φ = 28835952644.

The previous prime is 86507857927. The next prime is 86507857951. The reversal of 86507857938 is 83975870568.

It is a sphenic number, since it is the product of 3 distinct primes.

86507857938 is an admirable number.

It is a super-2 number, since 2×86507857938² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7208988156 + ... + 7208988167.

It is an arithmetic number, because the mean of its divisors is an integer number (21626964486).

Almost surely, 2^86507857938 is an apocalyptic number.

86507857938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86507857938 is a wasteful number, since it uses less digits than its factorization.

86507857938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14417976328.

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 86507857938 in words is "eighty-six billion, five hundred seven million, eight hundred fifty-seven thousand, nine hundred thirty-eight".