11975577737 has 2 divisors, whose sum is σ = 11975577738. Its totient is φ = 11975577736.

The previous prime is 11975577721. The next prime is 11975577763. The reversal of 11975577737 is 73777557911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10212921481 + 1762656256 = 101059^2 + 41984^2 .

It is a cyclic number.

It is not a de Polignac number, because 11975577737 - 2⁴ = 11975577721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11975577797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987788868 + 5987788869.

It is an arithmetic number, because the mean of its divisors is an integer number (5987788869).

Almost surely, 2^11975577737 is an apocalyptic number.

It is an amenable number.

11975577737 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975577737 is an equidigital number, since it uses as much as digits as its factorization.

11975577737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11344725, while the sum is 59.

The spelling of 11975577737 in words is "eleven billion, nine hundred seventy-five million, five hundred seventy-seven thousand, seven hundred thirty-seven".