11972298724 has 9 divisors (see below), whose sum is σ = 20951905737. Its totient is φ = 5986039944.

The previous prime is 11972298691. The next prime is 11972298743. The reversal of 11972298724 is 42789227911.

The square root of 11972298724 is 109418.

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., 4486588324 + 7485710400 = 66982^2 + 86520^2 .

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, 191482 + ... + 246190.

Almost surely, 2^11972298724 is an apocalyptic number.

11972298724 is the 109418-th square number.

It is an amenable number.

11972298724 is a deficient number, since it is larger than the sum of its proper divisors (8979607013).

11972298724 is an frugal number, since it uses more digits than its factorization.

11972298724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109422 (or 54711 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The spelling of 11972298724 in words is "eleven billion, nine hundred seventy-two million, two hundred ninety-eight thousand, seven hundred twenty-four".