11992554319 has 2 divisors, whose sum is σ = 11992554320. Its totient is φ = 11992554318.

The previous prime is 11992554317. The next prime is 11992554323. The reversal of 11992554319 is 91345529911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11992554319 - 2¹ = 11992554317 is a prime.

It is a super-2 number, since 2×11992554319² (a number of 21 digits) contains 22 as substring.

Together with 11992554317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11992554317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5996277159 + 5996277160.

It is an arithmetic number, because the mean of its divisors is an integer number (5996277160).

Almost surely, 2^11992554319 is an apocalyptic number.

11992554319 is a deficient number, since it is larger than the sum of its proper divisors (1).

11992554319 is an equidigital number, since it uses as much as digits as its factorization.

11992554319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 49.

The spelling of 11992554319 in words is "eleven billion, nine hundred ninety-two million, five hundred fifty-four thousand, three hundred nineteen".