34345510391 has 2 divisors, whose sum is σ = 34345510392. Its totient is φ = 34345510390.

The previous prime is 34345510373. The next prime is 34345510477. The reversal of 34345510391 is 19301554343.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34345510391 - 2²⁶ = 34278401527 is a prime.

It is a super-2 number, since 2×34345510391² (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 (34345510351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17172755195 + 17172755196.

It is an arithmetic number, because the mean of its divisors is an integer number (17172755196).

Almost surely, 2^34345510391 is an apocalyptic number.

34345510391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34345510391 is an equidigital number, since it uses as much as digits as its factorization.

34345510391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 34345510391 in words is "thirty-four billion, three hundred forty-five million, five hundred ten thousand, three hundred ninety-one".