2455783718819 has 2 divisors, whose sum is σ = 2455783718820. Its totient is φ = 2455783718818.

The previous prime is 2455783718813. The next prime is 2455783718827. The reversal of 2455783718819 is 9188173875542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2455783718819 - 2³⁶ = 2387064242083 is a prime.

It is a super-2 number, since 2×2455783718819² (a number of 26 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 (2455783718813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227891859409 + 1227891859410.

It is an arithmetic number, because the mean of its divisors is an integer number (1227891859410).

Almost surely, 2^{2455783718819} is an apocalyptic number.

2455783718819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455783718819 is an equidigital number, since it uses as much as digits as its factorization.

2455783718819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135475200, while the sum is 68.

The spelling of 2455783718819 in words is "two trillion, four hundred fifty-five billion, seven hundred eighty-three million, seven hundred eighteen thousand, eight hundred nineteen".