31368563448 has 32 divisors (see below), whose sum is σ = 78874722000. Its totient is φ = 10395746048.

The previous prime is 31368563393. The next prime is 31368563449. The reversal of 31368563448 is 84436586313.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31368563448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368563449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773373 + ... + 3781676.

Almost surely, 2^31368563448 is an apocalyptic number.

It is an amenable number.

31368563448 is an abundant number, since it is smaller than the sum of its proper divisors (47506158552).

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

31368563448 is a wasteful number, since it uses less digits than its factorization.

31368563448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555231 (or 7555227 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 51.

The spelling of 31368563448 in words is "thirty-one billion, three hundred sixty-eight million, five hundred sixty-three thousand, four hundred forty-eight".