34679891849 has 2 divisors, whose sum is σ = 34679891850. Its totient is φ = 34679891848.

The previous prime is 34679891777. The next prime is 34679891893. The reversal of 34679891849 is 94819897643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34625766400 + 54125449 = 186080^2 + 7357^2 .

It is a cyclic number.

It is not a de Polignac number, because 34679891849 - 2²⁸ = 34411456393 is a prime.

It is not a weakly prime, because it can be changed into another prime (34679891749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17339945924 + 17339945925.

It is an arithmetic number, because the mean of its divisors is an integer number (17339945925).

Almost surely, 2^34679891849 is an apocalyptic number.

It is an amenable number.

34679891849 is a deficient number, since it is larger than the sum of its proper divisors (1).

34679891849 is an equidigital number, since it uses as much as digits as its factorization.

34679891849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94058496, while the sum is 68.

The spelling of 34679891849 in words is "thirty-four billion, six hundred seventy-nine million, eight hundred ninety-one thousand, eight hundred forty-nine".