11390865984 has 63 divisors (see below), whose sum is σ = 32657204307. Its totient is φ = 3796101504.

The previous prime is 11390865979. The next prime is 11390866013. The reversal of 11390865984 is 48956809311.

The square root of 11390865984 is 106728.

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

11390865984 is a `hidden beast` number, since 11 + 39 + 0 + 8 + 6 + 598 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11390865984.

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, 2559249 + ... + 2563695.

Almost surely, 2^11390865984 is an apocalyptic number.

11390865984 is the 106728-th square number.

It is an amenable number.

11390865984 is an abundant number, since it is smaller than the sum of its proper divisors (21266338323).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11390865984 is an frugal number, since it uses more digits than its factorization.

11390865984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912 (or 4452 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 11390865984 in words is "eleven billion, three hundred ninety million, eight hundred sixty-five thousand, nine hundred eighty-four".