18377379353 has 2 divisors, whose sum is σ = 18377379354. Its totient is φ = 18377379352.

The previous prime is 18377379323. The next prime is 18377379407. The reversal of 18377379353 is 35397377381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9337743424 + 9039635929 = 96632^2 + 95077^2 .

It is a cyclic number.

It is not a de Polignac number, because 18377379353 - 2⁶ = 18377379289 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 (18377379313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188689676 + 9188689677.

It is an arithmetic number, because the mean of its divisors is an integer number (9188689677).

Almost surely, 2^18377379353 is an apocalyptic number.

It is an amenable number.

18377379353 is a deficient number, since it is larger than the sum of its proper divisors (1).

18377379353 is an equidigital number, since it uses as much as digits as its factorization.

18377379353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10001880, while the sum is 56.

The spelling of 18377379353 in words is "eighteen billion, three hundred seventy-seven million, three hundred seventy-nine thousand, three hundred fifty-three".