614443045721 has 2 divisors, whose sum is σ = 614443045722. Its totient is φ = 614443045720.

The previous prime is 614443045717. The next prime is 614443045739. The reversal of 614443045721 is 127540344416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 505634766400 + 108808279321 = 711080^2 + 329861^2 .

It is a cyclic number.

It is not a de Polignac number, because 614443045721 - 2² = 614443045717 is a prime.

It is not a weakly prime, because it can be changed into another prime (614443045921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307221522860 + 307221522861.

It is an arithmetic number, because the mean of its divisors is an integer number (307221522861).

Almost surely, 2^614443045721 is an apocalyptic number.

It is an amenable number.

614443045721 is a deficient number, since it is larger than the sum of its proper divisors (1).

614443045721 is an equidigital number, since it uses as much as digits as its factorization.

614443045721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 614443045721 in words is "six hundred fourteen billion, four hundred forty-three million, forty-five thousand, seven hundred twenty-one".