34445378251 has 2 divisors, whose sum is σ = 34445378252. Its totient is φ = 34445378250.

The previous prime is 34445378221. The next prime is 34445378263. The reversal of 34445378251 is 15287354443.

It is a strong prime.

It is an emirp because it is prime and its reverse (15287354443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34445378251 - 2³³ = 25855443659 is a prime.

It is not a weakly prime, because it can be changed into another prime (34445378221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17222689125 + 17222689126.

It is an arithmetic number, because the mean of its divisors is an integer number (17222689126).

Almost surely, 2^34445378251 is an apocalyptic number.

34445378251 is a deficient number, since it is larger than the sum of its proper divisors (1).

34445378251 is an equidigital number, since it uses as much as digits as its factorization.

34445378251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 46.

The spelling of 34445378251 in words is "thirty-four billion, four hundred forty-five million, three hundred seventy-eight thousand, two hundred fifty-one".