11921054425344 has 135 divisors (see below), whose sum is σ = 35547909868317. Its totient is φ = 3973519079424.

The previous prime is 11921054425331. The next prime is 11921054425361. The reversal of 11921054425344 is 44352445012911.

The square root of 11921054425344 is 3452688.

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

11921054425344 is a `hidden beast` number, since 1 + 1 + 9 + 2 + 10 + 544 + 2 + 53 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5166710841600 + 6754343583744 = 2273040^2 + 2598912^2 .

It is a super-2 number, since 2×11921054425344² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11921054425344.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 497175084 + ... + 497199060.

Almost surely, 2^{11921054425344} is an apocalyptic number.

11921054425344 is the 3452688-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11921054425344

11921054425344 is an abundant number, since it is smaller than the sum of its proper divisors (23626855442973).

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

11921054425344 is an frugal number, since it uses more digits than its factorization.

11921054425344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47982 (or 23982 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 11921054425344 in words is "eleven trillion, nine hundred twenty-one billion, fifty-four million, four hundred twenty-five thousand, three hundred forty-four".