34100646779 has 2 divisors, whose sum is σ = 34100646780. Its totient is φ = 34100646778.

The previous prime is 34100646761. The next prime is 34100646799. The reversal of 34100646779 is 97764600143.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34100646779 is a prime.

It is a super-2 number, since 2×34100646779² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34100646719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17050323389 + 17050323390.

It is an arithmetic number, because the mean of its divisors is an integer number (17050323390).

Almost surely, 2^34100646779 is an apocalyptic number.

34100646779 is a deficient number, since it is larger than the sum of its proper divisors (1).

34100646779 is an equidigital number, since it uses as much as digits as its factorization.

34100646779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 34100646779 in words is "thirty-four billion, one hundred million, six hundred forty-six thousand, seven hundred seventy-nine".