18976468013 has 2 divisors, whose sum is σ = 18976468014. Its totient is φ = 18976468012.

The previous prime is 18976467977. The next prime is 18976468031. The reversal of 18976468013 is 31086467981.

Together with next prime (18976468031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18932934409 + 43533604 = 137597^2 + 6598^2 .

It is an emirp because it is prime and its reverse (31086467981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18976468013 - 2¹⁶ = 18976402477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18976468813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9488234006 + 9488234007.

It is an arithmetic number, because the mean of its divisors is an integer number (9488234007).

Almost surely, 2^18976468013 is an apocalyptic number.

It is an amenable number.

18976468013 is a deficient number, since it is larger than the sum of its proper divisors (1).

18976468013 is an equidigital number, since it uses as much as digits as its factorization.

18976468013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 18976468013 in words is "eighteen billion, nine hundred seventy-six million, four hundred sixty-eight thousand, thirteen".