11972023205967 has 48 divisors (see below), whose sum is σ = 18964614240000. Its totient is φ = 7217479399680.

The previous prime is 11972023205963. The next prime is 11972023205969. The reversal of 11972023205967 is 76950232027911.

11972023205967 is a `hidden beast` number, since 1 + 1 + 9 + 7 + 2 + 0 + 23 + 20 + 596 + 7 = 666.

It is not a de Polignac number, because 11972023205967 - 2² = 11972023205963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11972023205963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79694308 + ... + 79844390.

It is an arithmetic number, because the mean of its divisors is an integer number (395096130000).

Almost surely, 2^{11972023205967} is an apocalyptic number.

11972023205967 is a deficient number, since it is larger than the sum of its proper divisors (6992591034033).

11972023205967 is a wasteful number, since it uses less digits than its factorization.

11972023205967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154348 (or 154345 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 11972023205967 in words is "eleven trillion, nine hundred seventy-two billion, twenty-three million, two hundred five thousand, nine hundred sixty-seven".