49964765819 has 2 divisors, whose sum is σ = 49964765820. Its totient is φ = 49964765818.

The previous prime is 49964765759. The next prime is 49964765867. The reversal of 49964765819 is 91856746994.

49964765819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49964765819 - 2²⁸ = 49696330363 is a prime.

It is a super-2 number, since 2×49964765819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49964765219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24982382909 + 24982382910.

It is an arithmetic number, because the mean of its divisors is an integer number (24982382910).

Almost surely, 2^49964765819 is an apocalyptic number.

49964765819 is a deficient number, since it is larger than the sum of its proper divisors (1).

49964765819 is an equidigital number, since it uses as much as digits as its factorization.

49964765819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 68.

The spelling of 49964765819 in words is "forty-nine billion, nine hundred sixty-four million, seven hundred sixty-five thousand, eight hundred nineteen".