78297607459 has 2 divisors, whose sum is σ = 78297607460. Its totient is φ = 78297607458.

The previous prime is 78297607441. The next prime is 78297607517. The reversal of 78297607459 is 95470679287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78297607459 - 2¹¹ = 78297605411 is a prime.

It is a super-2 number, since 2×78297607459² (a number of 23 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 78297607459.

It is not a weakly prime, because it can be changed into another prime (78297607259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39148803729 + 39148803730.

It is an arithmetic number, because the mean of its divisors is an integer number (39148803730).

Almost surely, 2^78297607459 is an apocalyptic number.

78297607459 is a deficient number, since it is larger than the sum of its proper divisors (1).

78297607459 is an equidigital number, since it uses as much as digits as its factorization.

78297607459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 78297607459 in words is "seventy-eight billion, two hundred ninety-seven million, six hundred seven thousand, four hundred fifty-nine".