31404068564 has 48 divisors (see below), whose sum is σ = 62431689600. Its totient is φ = 13690992000.

The previous prime is 31404068557. The next prime is 31404068569. The reversal of 31404068564 is 46586040413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404068569) 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 15 ways as a sum of consecutive naturals, for example, 111182 + ... + 274170.

It is an arithmetic number, because the mean of its divisors is an integer number (1300660200).

Almost surely, 2^31404068564 is an apocalyptic number.

It is an amenable number.

31404068564 is a deficient number, since it is larger than the sum of its proper divisors (31027621036).

31404068564 is a wasteful number, since it uses less digits than its factorization.

31404068564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163184 (or 163182 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

It can be divided in two parts, 3140 and 4068564, that added together give a palindrome (4071704).

The spelling of 31404068564 in words is "thirty-one billion, four hundred four million, sixty-eight thousand, five hundred sixty-four".