349169002621 has 2 divisors, whose sum is σ = 349169002622. Its totient is φ = 349169002620.

The previous prime is 349169002577. The next prime is 349169002631. The reversal of 349169002621 is 126200961943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345185625625 + 3983376996 = 587525^2 + 63114^2 .

It is a cyclic number.

It is not a de Polignac number, because 349169002621 - 2²³ = 349160614013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349169002631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174584501310 + 174584501311.

It is an arithmetic number, because the mean of its divisors is an integer number (174584501311).

Almost surely, 2^349169002621 is an apocalyptic number.

It is an amenable number.

349169002621 is a deficient number, since it is larger than the sum of its proper divisors (1).

349169002621 is an equidigital number, since it uses as much as digits as its factorization.

349169002621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 349169002621 in words is "three hundred forty-nine billion, one hundred sixty-nine million, two thousand, six hundred twenty-one".