707420318621 has 2 divisors, whose sum is σ = 707420318622. Its totient is φ = 707420318620.

The previous prime is 707420318597. The next prime is 707420318641. The reversal of 707420318621 is 126813024707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380613729721 + 326806588900 = 616939^2 + 571670^2 .

It is a cyclic number.

It is not a de Polignac number, because 707420318621 - 2⁶ = 707420318557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (707420318641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353710159310 + 353710159311.

It is an arithmetic number, because the mean of its divisors is an integer number (353710159311).

Almost surely, 2^707420318621 is an apocalyptic number.

It is an amenable number.

707420318621 is a deficient number, since it is larger than the sum of its proper divisors (1).

707420318621 is an equidigital number, since it uses as much as digits as its factorization.

707420318621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 707420318621 in words is "seven hundred seven billion, four hundred twenty million, three hundred eighteen thousand, six hundred twenty-one".