11977407983 has 2 divisors, whose sum is σ = 11977407984. Its totient is φ = 11977407982.

The previous prime is 11977407901. The next prime is 11977407989. The reversal of 11977407983 is 38970477911.

It is a strong prime.

It is an emirp because it is prime and its reverse (38970477911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11977407983 - 2²⁶ = 11910299119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11977407989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5988703991 + 5988703992.

It is an arithmetic number, because the mean of its divisors is an integer number (5988703992).

Almost surely, 2^11977407983 is an apocalyptic number.

11977407983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11977407983 is an equidigital number, since it uses as much as digits as its factorization.

11977407983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 11977407983 in words is "eleven billion, nine hundred seventy-seven million, four hundred seven thousand, nine hundred eighty-three".