11864331719 has 2 divisors, whose sum is σ = 11864331720. Its totient is φ = 11864331718.

The previous prime is 11864331697. The next prime is 11864331733. The reversal of 11864331719 is 91713346811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11864331719 is a prime.

It is a super-2 number, since 2×11864331719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11864331719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11864331769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932165859 + 5932165860.

It is an arithmetic number, because the mean of its divisors is an integer number (5932165860).

Almost surely, 2^11864331719 is an apocalyptic number.

11864331719 is a deficient number, since it is larger than the sum of its proper divisors (1).

11864331719 is an equidigital number, since it uses as much as digits as its factorization.

11864331719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The spelling of 11864331719 in words is "eleven billion, eight hundred sixty-four million, three hundred thirty-one thousand, seven hundred nineteen".