86585722228 has 6 divisors (see below), whose sum is σ = 151525013906. Its totient is φ = 43292861112.

The previous prime is 86585722193. The next prime is 86585722261. The reversal of 86585722228 is 82222758568.

It can be written as a sum of positive squares in only one way, i.e., 52839297424 + 33746424804 = 229868^2 + 183702^2 .

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, 10823215275 + ... + 10823215282.

Almost surely, 2^86585722228 is an apocalyptic number.

It is an amenable number.

86585722228 is a deficient number, since it is larger than the sum of its proper divisors (64939291678).

86585722228 is a wasteful number, since it uses less digits than its factorization.

86585722228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21646430561 (or 21646430559 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 55.

The spelling of 86585722228 in words is "eighty-six billion, five hundred eighty-five million, seven hundred twenty-two thousand, two hundred twenty-eight".