11968776806464 has 21 divisors (see below), whose sum is σ = 23750596396477. Its totient is φ = 5984374564864.

The previous prime is 11968776806411. The next prime is 11968776806477. The reversal of 11968776806464 is 46460867786911.

The square root of 11968776806464 is 3459592.

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., 1671352524864 + 10297424281600 = 1292808^2 + 3208960^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 27460512 + ... + 27892960.

Almost surely, 2^{11968776806464} is an apocalyptic number.

11968776806464 is the 3459592-nd square number.

It is an amenable number.

11968776806464 is a deficient number, since it is larger than the sum of its proper divisors (11781819590013).

11968776806464 is an frugal number, since it uses more digits than its factorization.

11968776806464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864910 (or 432451 counting only the distinct ones).

The product of its (nonzero) digits is 585252864, while the sum is 73.

The spelling of 11968776806464 in words is "eleven trillion, nine hundred sixty-eight billion, seven hundred seventy-six million, eight hundred six thousand, four hundred sixty-four".