19116148913 has 2 divisors, whose sum is σ = 19116148914. Its totient is φ = 19116148912.

The previous prime is 19116148801. The next prime is 19116148949. The reversal of 19116148913 is 31984161191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18716428864 + 399720049 = 136808^2 + 19993^2 .

It is a cyclic number.

It is not a de Polignac number, because 19116148913 - 2¹⁰ = 19116147889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19116148973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9558074456 + 9558074457.

It is an arithmetic number, because the mean of its divisors is an integer number (9558074457).

Almost surely, 2^19116148913 is an apocalyptic number.

It is an amenable number.

19116148913 is a deficient number, since it is larger than the sum of its proper divisors (1).

19116148913 is an equidigital number, since it uses as much as digits as its factorization.

19116148913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 44.

The spelling of 19116148913 in words is "nineteen billion, one hundred sixteen million, one hundred forty-eight thousand, nine hundred thirteen".