42939995719 has 2 divisors, whose sum is σ = 42939995720. Its totient is φ = 42939995718.

The previous prime is 42939995711. The next prime is 42939995723. The reversal of 42939995719 is 91759993924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42939995719 - 2³ = 42939995711 is a prime.

It is a super-2 number, since 2×42939995719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42939995711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21469997859 + 21469997860.

It is an arithmetic number, because the mean of its divisors is an integer number (21469997860).

Almost surely, 2^42939995719 is an apocalyptic number.

42939995719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42939995719 is an equidigital number, since it uses as much as digits as its factorization.

42939995719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49601160, while the sum is 67.

The spelling of 42939995719 in words is "forty-two billion, nine hundred thirty-nine million, nine hundred ninety-five thousand, seven hundred nineteen".