34780404797 has 2 divisors, whose sum is σ = 34780404798. Its totient is φ = 34780404796.

The previous prime is 34780404781. The next prime is 34780404821. The reversal of 34780404797 is 79740408743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18112045561 + 16668359236 = 134581^2 + 129106^2 .

It is a cyclic number.

It is not a de Polignac number, because 34780404797 - 2⁴ = 34780404781 is a prime.

It is a super-2 number, since 2×34780404797² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34780004797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17390202398 + 17390202399.

It is an arithmetic number, because the mean of its divisors is an integer number (17390202399).

Almost surely, 2^34780404797 is an apocalyptic number.

It is an amenable number.

34780404797 is a deficient number, since it is larger than the sum of its proper divisors (1).

34780404797 is an equidigital number, since it uses as much as digits as its factorization.

34780404797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 34780404797 in words is "thirty-four billion, seven hundred eighty million, four hundred four thousand, seven hundred ninety-seven".