231097718406 has 16 divisors (see below), whose sum is σ = 462255531264. Its totient is φ = 77022557064.

The previous prime is 231097718363. The next prime is 231097718417. The reversal of 231097718406 is 604817790132.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 2453866 + ... + 2546301.

It is an arithmetic number, because the mean of its divisors is an integer number (28890970704).

Almost surely, 2^231097718406 is an apocalyptic number.

231097718406 is an abundant number, since it is smaller than the sum of its proper divisors (231157812858).

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

231097718406 is a wasteful number, since it uses less digits than its factorization.

231097718406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007875.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 231097718406 in words is "two hundred thirty-one billion, ninety-seven million, seven hundred eighteen thousand, four hundred six".