11111964757 has 2 divisors, whose sum is σ = 11111964758. Its totient is φ = 11111964756.

The previous prime is 11111964739. The next prime is 11111964761. The reversal of 11111964757 is 75746911111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9341995716 + 1769969041 = 96654^2 + 42071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111964757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11151964757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555982378 + 5555982379.

It is an arithmetic number, because the mean of its divisors is an integer number (5555982379).

Almost surely, 2^11111964757 is an apocalyptic number.

It is an amenable number.

11111964757 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111964757 is an equidigital number, since it uses as much as digits as its factorization.

11111964757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 43.

The spelling of 11111964757 in words is "eleven billion, one hundred eleven million, nine hundred sixty-four thousand, seven hundred fifty-seven".