11972514546 has 12 divisors (see below), whose sum is σ = 25940448222. Its totient is φ = 3990838176.

The previous prime is 11972514539. The next prime is 11972514581. The reversal of 11972514546 is 64541527911.

11972514546 is a `hidden beast` number, since 1 + 1 + 97 + 2 + 5 + 14 + 546 = 666.

11972514546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9259250625 + 2713263921 = 96225^2 + 52089^2 .

It is a super-2 number, since 2×11972514546² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332569831 + ... + 332569866.

Almost surely, 2^11972514546 is an apocalyptic number.

11972514546 is an abundant number, since it is smaller than the sum of its proper divisors (13967933676).

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

11972514546 is a wasteful number, since it uses less digits than its factorization.

11972514546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665139705 (or 665139702 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 11972514546 in words is "eleven billion, nine hundred seventy-two million, five hundred fourteen thousand, five hundred forty-six".