31421066764 has 24 divisors (see below), whose sum is σ = 57944855360. Its totient is φ = 14867220816.

The previous prime is 31421066753. The next prime is 31421066767. The reversal of 31421066764 is 46766012413.

It is not an unprimeable number, because it can be changed into a prime (31421066767) 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, 158982 + ... + 296845.

Almost surely, 2^31421066764 is an apocalyptic number.

It is an amenable number.

31421066764 is a deficient number, since it is larger than the sum of its proper divisors (26523788596).

31421066764 is a wasteful number, since it uses less digits than its factorization.

31421066764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456757 (or 456755 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 31421066764 in words is "thirty-one billion, four hundred twenty-one million, sixty-six thousand, seven hundred sixty-four".