3421234644391 has 2 divisors, whose sum is σ = 3421234644392. Its totient is φ = 3421234644390.

The previous prime is 3421234644371. The next prime is 3421234644467. The reversal of 3421234644391 is 1934464321243.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3421234644391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3421234644371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710617322195 + 1710617322196.

It is an arithmetic number, because the mean of its divisors is an integer number (1710617322196).

Almost surely, 2^{3421234644391} is an apocalyptic number.

3421234644391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421234644391 is an equidigital number, since it uses as much as digits as its factorization.

3421234644391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 46.

The spelling of 3421234644391 in words is "three trillion, four hundred twenty-one billion, two hundred thirty-four million, six hundred forty-four thousand, three hundred ninety-one".