78468417187759 has 2 divisors, whose sum is σ = 78468417187760. Its totient is φ = 78468417187758.

The previous prime is 78468417187613. The next prime is 78468417187793. The reversal of 78468417187759 is 95778171486487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78468417187759 - 2²⁷ = 78468282970031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78468417127759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39234208593879 + 39234208593880.

It is an arithmetic number, because the mean of its divisors is an integer number (39234208593880).

Almost surely, 2^{78468417187759} is an apocalyptic number.

78468417187759 is a deficient number, since it is larger than the sum of its proper divisors (1).

78468417187759 is an equidigital number, since it uses as much as digits as its factorization.

78468417187759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5310627840, while the sum is 82.

The spelling of 78468417187759 in words is "seventy-eight trillion, four hundred sixty-eight billion, four hundred seventeen million, one hundred eighty-seven thousand, seven hundred fifty-nine".