231285773641604 has 18 divisors (see below), whose sum is σ = 444890610042942. Its totient is φ = 105129897109600.

The previous prime is 231285773641597. The next prime is 231285773641609. The reversal of 231285773641604 is 406146377582132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 204842503782400 + 26443269859204 = 14312320^2 + 5142302^2 .

It is a super-2 number, since 2×231285773641604² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231285773641609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 238931583857 + ... + 238931584824.

Almost surely, 2^{231285773641604} is an apocalyptic number.

It is an amenable number.

231285773641604 is a deficient number, since it is larger than the sum of its proper divisors (213604836401338).

231285773641604 is a wasteful number, since it uses less digits than its factorization.

231285773641604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477863168707 (or 477863168694 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 59.

The spelling of 231285773641604 in words is "two hundred thirty-one trillion, two hundred eighty-five billion, seven hundred seventy-three million, six hundred forty-one thousand, six hundred four".