213531623554264 has 128 divisors (see below), whose sum is σ = 425919241440000. Its totient is φ = 100077357219840.

The previous prime is 213531623554253. The next prime is 213531623554273. The reversal of 213531623554264 is 462455326135312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16828082832 + ... + 16828095520.

It is an arithmetic number, because the mean of its divisors is an integer number (3327494073750).

Almost surely, 2^{213531623554264} is an apocalyptic number.

It is an amenable number.

213531623554264 is a deficient number, since it is larger than the sum of its proper divisors (212387617885736).

213531623554264 is a wasteful number, since it uses less digits than its factorization.

213531623554264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281 (or 15277 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 52.

Adding to 213531623554264 its reverse (462455326135312), we get a palindrome (675986949689576).

The spelling of 213531623554264 in words is "two hundred thirteen trillion, five hundred thirty-one billion, six hundred twenty-three million, five hundred fifty-four thousand, two hundred sixty-four".