31422520664 has 32 divisors (see below), whose sum is σ = 60533600400. Its totient is φ = 15285719040.

The previous prime is 31422520651. The next prime is 31422520667. The reversal of 31422520664 is 46602522413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422520667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297377 + ... + 388944.

Almost surely, 2^31422520664 is an apocalyptic number.

It is an amenable number.

31422520664 is a deficient number, since it is larger than the sum of its proper divisors (29111079736).

31422520664 is a wasteful number, since it uses less digits than its factorization.

31422520664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686483 (or 686479 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 31422520664 in words is "thirty-one billion, four hundred twenty-two million, five hundred twenty thousand, six hundred sixty-four".