11712464977 has 2 divisors, whose sum is σ = 11712464978. Its totient is φ = 11712464976.

The previous prime is 11712464927. The next prime is 11712464983. The reversal of 11712464977 is 77946421711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11645863056 + 66601921 = 107916^2 + 8161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11712464977 is a prime.

It is a super-2 number, since 2×11712464977² (a number of 21 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 11712464977.

It is not a weakly prime, because it can be changed into another prime (11712464927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5856232488 + 5856232489.

It is an arithmetic number, because the mean of its divisors is an integer number (5856232489).

Almost surely, 2^11712464977 is an apocalyptic number.

It is an amenable number.

11712464977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11712464977 is an equidigital number, since it uses as much as digits as its factorization.

11712464977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 49.

The spelling of 11712464977 in words is "eleven billion, seven hundred twelve million, four hundred sixty-four thousand, nine hundred seventy-seven".