78504570546793 has 2 divisors, whose sum is σ = 78504570546794. Its totient is φ = 78504570546792.

The previous prime is 78504570546749. The next prime is 78504570546863. The reversal of 78504570546793 is 39764507540587.

It is an a-pointer prime, because the next prime (78504570546863) can be obtained adding 78504570546793 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52094139511129 + 26410431035664 = 7217627^2 + 5139108^2 .

It is a cyclic number.

It is not a de Polignac number, because 78504570546793 - 2³³ = 78495980612201 is a prime.

It is not a weakly prime, because it can be changed into another prime (78504570556793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39252285273396 + 39252285273397.

It is an arithmetic number, because the mean of its divisors is an integer number (39252285273397).

Almost surely, 2^{78504570546793} is an apocalyptic number.

It is an amenable number.

78504570546793 is a deficient number, since it is larger than the sum of its proper divisors (1).

78504570546793 is an equidigital number, since it uses as much as digits as its factorization.

78504570546793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056000, while the sum is 70.

The spelling of 78504570546793 in words is "seventy-eight trillion, five hundred four billion, five hundred seventy million, five hundred forty-six thousand, seven hundred ninety-three".