11837183993 has 2 divisors, whose sum is σ = 11837183994. Its totient is φ = 11837183992.

The previous prime is 11837183987. The next prime is 11837184097. The reversal of 11837183993 is 39938173811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10005600784 + 1831583209 = 100028^2 + 42797^2 .

It is a cyclic number.

It is not a de Polignac number, because 11837183993 - 2²⁰ = 11836135417 is a prime.

It is not a weakly prime, because it can be changed into another prime (11837183903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5918591996 + 5918591997.

It is an arithmetic number, because the mean of its divisors is an integer number (5918591997).

Almost surely, 2^11837183993 is an apocalyptic number.

It is an amenable number.

11837183993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11837183993 is an equidigital number, since it uses as much as digits as its factorization.

11837183993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 53.

The spelling of 11837183993 in words is "eleven billion, eight hundred thirty-seven million, one hundred eighty-three thousand, nine hundred ninety-three".