434694408637 has 2 divisors, whose sum is σ = 434694408638. Its totient is φ = 434694408636.

The previous prime is 434694408607. The next prime is 434694408703. The reversal of 434694408637 is 736804496434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424262033316 + 10432375321 = 651354^2 + 102139^2 .

It is a cyclic number.

It is not a de Polignac number, because 434694408637 - 2¹¹ = 434694406589 is a prime.

It is a super-2 number, since 2×434694408637² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434694408607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217347204318 + 217347204319.

It is an arithmetic number, because the mean of its divisors is an integer number (217347204319).

Almost surely, 2^434694408637 is an apocalyptic number.

It is an amenable number.

434694408637 is a deficient number, since it is larger than the sum of its proper divisors (1).

434694408637 is an equidigital number, since it uses as much as digits as its factorization.

434694408637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 58.

The spelling of 434694408637 in words is "four hundred thirty-four billion, six hundred ninety-four million, four hundred eight thousand, six hundred thirty-seven".