797040970639 has 2 divisors, whose sum is σ = 797040970640. Its totient is φ = 797040970638.

The previous prime is 797040970619. The next prime is 797040970721. The reversal of 797040970639 is 936079040797.

797040970639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 797040970639 - 2¹⁵ = 797040937871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797040970619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398520485319 + 398520485320.

It is an arithmetic number, because the mean of its divisors is an integer number (398520485320).

Almost surely, 2^797040970639 is an apocalyptic number.

797040970639 is a deficient number, since it is larger than the sum of its proper divisors (1).

797040970639 is an equidigital number, since it uses as much as digits as its factorization.

797040970639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18003384, while the sum is 61.

The spelling of 797040970639 in words is "seven hundred ninety-seven billion, forty million, nine hundred seventy thousand, six hundred thirty-nine".