31279705681604 has 24 divisors (see below), whose sum is σ = 58197188266560. Its totient is φ = 14677597741664.

The previous prime is 31279705681583. The next prime is 31279705681621. The reversal of 31279705681604 is 40618650797213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3207512114 + ... + 3207521865.

It is an arithmetic number, because the mean of its divisors is an integer number (2424882844440).

It is a 1-persistent number, because it is pandigital, but 2⋅31279705681604 = 62559411363208 is not.

Almost surely, 2^{31279705681604} is an apocalyptic number.

It is an amenable number.

31279705681604 is a deficient number, since it is larger than the sum of its proper divisors (26917482584956).

31279705681604 is a wasteful number, since it uses less digits than its factorization.

31279705681604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415034059 (or 6415034057 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 31279705681604 in words is "thirty-one trillion, two hundred seventy-nine billion, seven hundred five million, six hundred eighty-one thousand, six hundred four".