86185742884 has 6 divisors (see below), whose sum is σ = 150825050054. Its totient is φ = 43092871440.

The previous prime is 86185742833. The next prime is 86185742893. The reversal of 86185742884 is 48824758168.

It can be written as a sum of positive squares in only one way, i.e., 80298556900 + 5887185984 = 283370^2 + 76728^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10773217857 + ... + 10773217864.

Almost surely, 2^86185742884 is an apocalyptic number.

It is an amenable number.

86185742884 is a deficient number, since it is larger than the sum of its proper divisors (64639307170).

86185742884 is a wasteful number, since it uses less digits than its factorization.

86185742884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21546435725 (or 21546435723 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 61.

The spelling of 86185742884 in words is "eighty-six billion, one hundred eighty-five million, seven hundred forty-two thousand, eight hundred eighty-four".