11894556119 has 2 divisors, whose sum is σ = 11894556120. Its totient is φ = 11894556118.

The previous prime is 11894556077. The next prime is 11894556127. The reversal of 11894556119 is 91165549811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11894556119 - 2²⁴ = 11877778903 is a prime.

It is a super-2 number, since 2×11894556119² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11894556139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5947278059 + 5947278060.

It is an arithmetic number, because the mean of its divisors is an integer number (5947278060).

Almost surely, 2^11894556119 is an apocalyptic number.

11894556119 is a deficient number, since it is larger than the sum of its proper divisors (1).

11894556119 is an equidigital number, since it uses as much as digits as its factorization.

11894556119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 50.

The spelling of 11894556119 in words is "eleven billion, eight hundred ninety-four million, five hundred fifty-six thousand, one hundred nineteen".