18461753819 has 2 divisors, whose sum is σ = 18461753820. Its totient is φ = 18461753818.

The previous prime is 18461753809. The next prime is 18461753837. The reversal of 18461753819 is 91835716481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18461753819 - 2²⁴ = 18444976603 is a prime.

It is a super-2 number, since 2×18461753819² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (18461753809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230876909 + 9230876910.

It is an arithmetic number, because the mean of its divisors is an integer number (9230876910).

Almost surely, 2^18461753819 is an apocalyptic number.

18461753819 is a deficient number, since it is larger than the sum of its proper divisors (1).

18461753819 is an equidigital number, since it uses as much as digits as its factorization.

18461753819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 53.

The spelling of 18461753819 in words is "eighteen billion, four hundred sixty-one million, seven hundred fifty-three thousand, eight hundred nineteen".