231630626506 has 16 divisors (see below), whose sum is σ = 348075118944. Its totient is φ = 115605743184.

The previous prime is 231630626497. The next prime is 231630626519. The reversal of 231630626506 is 605626036132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3034201 + ... + 3109603.

It is an arithmetic number, because the mean of its divisors is an integer number (21754694934).

Almost surely, 2^231630626506 is an apocalyptic number.

231630626506 is a deficient number, since it is larger than the sum of its proper divisors (116444492438).

231630626506 is a wasteful number, since it uses less digits than its factorization.

231630626506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78165.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 231630626506 in words is "two hundred thirty-one billion, six hundred thirty million, six hundred twenty-six thousand, five hundred six".