231541355312764 has 24 divisors (see below), whose sum is σ = 465759489309408. Its totient is φ = 98658413987520.

The previous prime is 231541355312723. The next prime is 231541355312791. The reversal of 231541355312764 is 467213553145132.

It is a happy number.

It is a super-2 number, since 2×231541355312764² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23899804747 + ... + 23899814434.

It is an arithmetic number, because the mean of its divisors is an integer number (19406645387892).

Almost surely, 2^{231541355312764} is an apocalyptic number.

It is an amenable number.

231541355312764 is an abundant number, since it is smaller than the sum of its proper divisors (234218133996644).

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

231541355312764 is a wasteful number, since it uses less digits than its factorization.

231541355312764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47799619365 (or 47799619363 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 52.

The spelling of 231541355312764 in words is "two hundred thirty-one trillion, five hundred forty-one billion, three hundred fifty-five million, three hundred twelve thousand, seven hundred sixty-four".