34197789961 has 2 divisors, whose sum is σ = 34197789962. Its totient is φ = 34197789960.

The previous prime is 34197789949. The next prime is 34197790001. The reversal of 34197789961 is 16998779143.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32949510400 + 1248279561 = 181520^2 + 35331^2 .

It is a cyclic number.

It is not a de Polignac number, because 34197789961 - 2⁷ = 34197789833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34197789893 and 34197789902.

It is not a weakly prime, because it can be changed into another prime (34197789911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17098894980 + 17098894981.

It is an arithmetic number, because the mean of its divisors is an integer number (17098894981).

Almost surely, 2^34197789961 is an apocalyptic number.

It is an amenable number.

34197789961 is a deficient number, since it is larger than the sum of its proper divisors (1).

34197789961 is an equidigital number, since it uses as much as digits as its factorization.

34197789961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 64.

The spelling of 34197789961 in words is "thirty-four billion, one hundred ninety-seven million, seven hundred eighty-nine thousand, nine hundred sixty-one".