11819118937 has 2 divisors, whose sum is σ = 11819118938. Its totient is φ = 11819118936.

The previous prime is 11819118923. The next prime is 11819118943. The reversal of 11819118937 is 73981191811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7336950336 + 4482168601 = 85656^2 + 66949^2 .

It is a cyclic number.

It is not a de Polignac number, because 11819118937 - 2²³ = 11810730329 is a prime.

It is not a weakly prime, because it can be changed into another prime (11819118907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5909559468 + 5909559469.

It is an arithmetic number, because the mean of its divisors is an integer number (5909559469).

Almost surely, 2^11819118937 is an apocalyptic number.

It is an amenable number.

11819118937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11819118937 is an equidigital number, since it uses as much as digits as its factorization.

11819118937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 49.

The spelling of 11819118937 in words is "eleven billion, eight hundred nineteen million, one hundred eighteen thousand, nine hundred thirty-seven".