3421450623517 has 2 divisors, whose sum is σ = 3421450623518. Its totient is φ = 3421450623516.

The previous prime is 3421450623509. The next prime is 3421450623553. The reversal of 3421450623517 is 7153260541243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2748469938201 + 672980685316 = 1657851^2 + 820354^2 .

It is an emirp because it is prime and its reverse (7153260541243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3421450623517 - 2³ = 3421450623509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3421451623517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710725311758 + 1710725311759.

It is an arithmetic number, because the mean of its divisors is an integer number (1710725311759).

Almost surely, 2^{3421450623517} is an apocalyptic number.

It is an amenable number.

3421450623517 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421450623517 is an equidigital number, since it uses as much as digits as its factorization.

3421450623517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 3421450623517 in words is "three trillion, four hundred twenty-one billion, four hundred fifty million, six hundred twenty-three thousand, five hundred seventeen".