18783168379 has 2 divisors, whose sum is σ = 18783168380. Its totient is φ = 18783168378.

The previous prime is 18783168329. The next prime is 18783168401. The reversal of 18783168379 is 97386138781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18783168379 - 2¹⁵ = 18783135611 is a prime.

It is not a weakly prime, because it can be changed into another prime (18783168329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9391584189 + 9391584190.

It is an arithmetic number, because the mean of its divisors is an integer number (9391584190).

Almost surely, 2^18783168379 is an apocalyptic number.

18783168379 is a deficient number, since it is larger than the sum of its proper divisors (1).

18783168379 is an equidigital number, since it uses as much as digits as its factorization.

18783168379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 61.

The spelling of 18783168379 in words is "eighteen billion, seven hundred eighty-three million, one hundred sixty-eight thousand, three hundred seventy-nine".