11763116921 has 2 divisors, whose sum is σ = 11763116922. Its totient is φ = 11763116920.

The previous prime is 11763116861. The next prime is 11763116933. The reversal of 11763116921 is 12961136711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5935932025 + 5827184896 = 77045^2 + 76336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11763116921 is a prime.

It is not a weakly prime, because it can be changed into another prime (11763116821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5881558460 + 5881558461.

It is an arithmetic number, because the mean of its divisors is an integer number (5881558461).

Almost surely, 2^11763116921 is an apocalyptic number.

It is an amenable number.

11763116921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11763116921 is an equidigital number, since it uses as much as digits as its factorization.

11763116921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 38.

The spelling of 11763116921 in words is "eleven billion, seven hundred sixty-three million, one hundred sixteen thousand, nine hundred twenty-one".