34356878749 has 2 divisors, whose sum is σ = 34356878750. Its totient is φ = 34356878748.

The previous prime is 34356878737. The next prime is 34356878821. The reversal of 34356878749 is 94787865343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17412649849 + 16944228900 = 131957^2 + 130170^2 .

It is a cyclic number.

It is not a de Polignac number, because 34356878749 - 2²⁵ = 34323324317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34356878719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17178439374 + 17178439375.

It is an arithmetic number, because the mean of its divisors is an integer number (17178439375).

Almost surely, 2^34356878749 is an apocalyptic number.

It is an amenable number.

34356878749 is a deficient number, since it is larger than the sum of its proper divisors (1).

34356878749 is an equidigital number, since it uses as much as digits as its factorization.

34356878749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 64.

The spelling of 34356878749 in words is "thirty-four billion, three hundred fifty-six million, eight hundred seventy-eight thousand, seven hundred forty-nine".