18810766031044 has 81 divisors (see below), whose sum is σ = 36005192329197. Its totient is φ = 8595235997088.

The previous prime is 18810766030997. The next prime is 18810766031053. The reversal of 18810766031044 is 44013066701881.

It is a happy number.

The square root of 18810766031044 is 4337138.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2782657696900 + 16028108334144 = 1668130^2 + 4003512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12065917137 + ... + 12065918695.

Almost surely, 2^{18810766031044} is an apocalyptic number.

18810766031044 is the 4337138-th square number.

It is an amenable number.

18810766031044 is a deficient number, since it is larger than the sum of its proper divisors (17194426298153).

18810766031044 is an equidigital number, since it uses as much as digits as its factorization.

18810766031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

Multiplying 18810766031044 by its sum of digits (49), we get a square (921727535521156 = 30359966²).

The spelling of 18810766031044 in words is "eighteen trillion, eight hundred ten billion, seven hundred sixty-six million, thirty-one thousand, forty-four".