34457778191 has 2 divisors, whose sum is σ = 34457778192. Its totient is φ = 34457778190.

The previous prime is 34457778169. The next prime is 34457778209. The reversal of 34457778191 is 19187775443.

34457778191 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 a de Polignac number, because none of the positive numbers 2^k-34457778191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34457778151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17228889095 + 17228889096.

It is an arithmetic number, because the mean of its divisors is an integer number (17228889096).

Almost surely, 2^34457778191 is an apocalyptic number.

34457778191 is a deficient number, since it is larger than the sum of its proper divisors (1).

34457778191 is an equidigital number, since it uses as much as digits as its factorization.

34457778191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5927040, while the sum is 56.

The spelling of 34457778191 in words is "thirty-four billion, four hundred fifty-seven million, seven hundred seventy-eight thousand, one hundred ninety-one".