19440099179 has 2 divisors, whose sum is σ = 19440099180. Its totient is φ = 19440099178.

The previous prime is 19440099139. The next prime is 19440099191. The reversal of 19440099179 is 97199004491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19440099179 - 2²⁸ = 19171663723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19440099179.

It is not a weakly prime, because it can be changed into another prime (19440099139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9720049589 + 9720049590.

It is an arithmetic number, because the mean of its divisors is an integer number (9720049590).

Almost surely, 2^19440099179 is an apocalyptic number.

19440099179 is a deficient number, since it is larger than the sum of its proper divisors (1).

19440099179 is an equidigital number, since it uses as much as digits as its factorization.

19440099179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 19440099179 in words is "nineteen billion, four hundred forty million, ninety-nine thousand, one hundred seventy-nine".