31226618468 has 12 divisors (see below), whose sum is σ = 54651779952. Its totient is φ = 15611824200.

The previous prime is 31226618431. The next prime is 31226618483. The reversal of 31226618468 is 86481662213.

It is a super-3 number, since 3×31226618468³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323258 + ... + 408593.

It is an arithmetic number, because the mean of its divisors is an integer number (4554314996).

Almost surely, 2^31226618468 is an apocalyptic number.

It is an amenable number.

31226618468 is a deficient number, since it is larger than the sum of its proper divisors (23425161484).

31226618468 is a wasteful number, since it uses less digits than its factorization.

31226618468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742522 (or 742520 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The spelling of 31226618468 in words is "thirty-one billion, two hundred twenty-six million, six hundred eighteen thousand, four hundred sixty-eight".