20037891604 has 12 divisors (see below), whose sum is σ = 35071211700. Its totient is φ = 10017545408.

The previous prime is 20037891581. The next prime is 20037891607. The reversal of 20037891604 is 40619873002.

It can be written as a sum of positive squares in 2 ways, for example, as 18496544004 + 1541347600 = 136002^2 + 39260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20037891607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317569 + ... + 375400.

It is an arithmetic number, because the mean of its divisors is an integer number (2922600975).

Almost surely, 2^20037891604 is an apocalyptic number.

It is an amenable number.

20037891604 is a deficient number, since it is larger than the sum of its proper divisors (15033320096).

20037891604 is a wasteful number, since it uses less digits than its factorization.

20037891604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700202 (or 700200 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 20037891604 in words is "twenty billion, thirty-seven million, eight hundred ninety-one thousand, six hundred four".