18730926149776 has 15 divisors (see below), whose sum is σ = 36291202956633. Its totient is φ = 9365454419040.

The previous prime is 18730926149753. The next prime is 18730926149791. The reversal of 18730926149776 is 67794162903781.

The square root of 18730926149776 is 4327924.

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., 4189196176 + 18726736953600 = 64724^2 + 4327440^2 .

It is a Duffinian number.

It is an unprimeable number.

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 in 2 ways as a sum of consecutive naturals, for example, 16770706 + ... + 17852686.

Almost surely, 2^{18730926149776} is an apocalyptic number.

18730926149776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18730926149776 is the 4327924-th square number.

It is an amenable number.

18730926149776 is a deficient number, since it is larger than the sum of its proper divisors (17560276806857).

18730926149776 is an frugal number, since it uses more digits than its factorization.

18730926149776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163970 (or 1081983 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 70.

The spelling of 18730926149776 in words is "eighteen trillion, seven hundred thirty billion, nine hundred twenty-six million, one hundred forty-nine thousand, seven hundred seventy-six".