31604144565044 has 12 divisors (see below), whose sum is σ = 55323572650500. Its totient is φ = 15797409522048.

The previous prime is 31604144565031. The next prime is 31604144565073. The reversal of 31604144565044 is 44056544140613.

It can be written as a sum of positive squares in 2 ways, for example, as 29333185984144 + 2270958580900 = 5416012^2 + 1506970^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31604144565044.

It is a congruent number.

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, 1165674869 + ... + 1165701980.

It is an arithmetic number, because the mean of its divisors is an integer number (4610297720875).

Almost surely, 2^{31604144565044} is an apocalyptic number.

It is an amenable number.

31604144565044 is a deficient number, since it is larger than the sum of its proper divisors (23719428085456).

31604144565044 is a wasteful number, since it uses less digits than its factorization.

31604144565044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331380242 (or 2331380240 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 31604144565044 in words is "thirty-one trillion, six hundred four billion, one hundred forty-four million, five hundred sixty-five thousand, forty-four".