31775477452 has 12 divisors (see below), whose sum is σ = 55687563736. Its totient is φ = 15864744960.

The previous prime is 31775477429. The next prime is 31775477519. The reversal of 31775477452 is 25477457713.

It is a hoax number, since the sum of its digits (52) 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 31775477452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5745333 + ... + 5750860.

Almost surely, 2^31775477452 is an apocalyptic number.

It is an amenable number.

31775477452 is a deficient number, since it is larger than the sum of its proper divisors (23912086284).

31775477452 is a wasteful number, since it uses less digits than its factorization.

31775477452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11496888 (or 11496886 counting only the distinct ones).

The product of its digits is 5762400, while the sum is 52.

The spelling of 31775477452 in words is "thirty-one billion, seven hundred seventy-five million, four hundred seventy-seven thousand, four hundred fifty-two".