18092704072 has 8 divisors (see below), whose sum is σ = 33923820150. Its totient is φ = 9046352032.

The previous prime is 18092704067. The next prime is 18092704079. The reversal of 18092704072 is 27040729081.

It can be written as a sum of positive squares in only one way, i.e., 17984419236 + 108284836 = 134106^2 + 10406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18092704079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130793997 + ... + 1130794012.

Almost surely, 2^18092704072 is an apocalyptic number.

It is an amenable number.

18092704072 is a deficient number, since it is larger than the sum of its proper divisors (15831116078).

18092704072 is a wasteful number, since it uses less digits than its factorization.

18092704072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261588015 (or 2261588011 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18092704072 in words is "eighteen billion, ninety-two million, seven hundred four thousand, seventy-two".