11938766383504 has 45 divisors (see below), whose sum is σ = 23635273871307. Its totient is φ = 5842057155552.

The previous prime is 11938766383469. The next prime is 11938766383571. The reversal of 11938766383504 is 40538366783911.

The square root of 11938766383504 is 3455252.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 649578187 + ... + 649596565.

Almost surely, 2^{11938766383504} is an apocalyptic number.

11938766383504 is the 3455252-nd square number.

It is an amenable number.

11938766383504 is a deficient number, since it is larger than the sum of its proper divisors (11696507487803).

11938766383504 is an frugal number, since it uses more digits than its factorization.

11938766383504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36860 (or 18428 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 64.

Multiplying 11938766383504 by its sum of digits (64), we get a square (764081048544256 = 27642016²).

The spelling of 11938766383504 in words is "eleven trillion, nine hundred thirty-eight billion, seven hundred sixty-six million, three hundred eighty-three thousand, five hundred four".