715768390369 has 2 divisors, whose sum is σ = 715768390370. Its totient is φ = 715768390368.

The previous prime is 715768390343. The next prime is 715768390373. The reversal of 715768390369 is 963093867517.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444973045969 + 270795344400 = 667063^2 + 520380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-715768390369 is a prime.

It is a super-2 number, since 2×715768390369² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 715768390369.

It is not a weakly prime, because it can be changed into another prime (715768390769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357884195184 + 357884195185.

It is an arithmetic number, because the mean of its divisors is an integer number (357884195185).

Almost surely, 2^715768390369 is an apocalyptic number.

It is an amenable number.

715768390369 is a deficient number, since it is larger than the sum of its proper divisors (1).

715768390369 is an equidigital number, since it uses as much as digits as its factorization.

715768390369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51438240, while the sum is 64.

The spelling of 715768390369 in words is "seven hundred fifteen billion, seven hundred sixty-eight million, three hundred ninety thousand, three hundred sixty-nine".