3420435607637 has 2 divisors, whose sum is σ = 3420435607638. Its totient is φ = 3420435607636.

The previous prime is 3420435607621. The next prime is 3420435607679. The reversal of 3420435607637 is 7367065340243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3123133683121 + 297301924516 = 1767239^2 + 545254^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420435607637 - 2⁴ = 3420435607621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420435607037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710217803818 + 1710217803819.

It is an arithmetic number, because the mean of its divisors is an integer number (1710217803819).

Almost surely, 2^{3420435607637} is an apocalyptic number.

It is an amenable number.

3420435607637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420435607637 is an equidigital number, since it uses as much as digits as its factorization.

3420435607637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 50.

The spelling of 3420435607637 in words is "three trillion, four hundred twenty billion, four hundred thirty-five million, six hundred seven thousand, six hundred thirty-seven".