78804247124359 has 2 divisors, whose sum is σ = 78804247124360. Its totient is φ = 78804247124358.

The previous prime is 78804247124341. The next prime is 78804247124387. The reversal of 78804247124359 is 95342174240887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78804247124359 - 2⁵ = 78804247124327 is a prime.

It is a super-2 number, since 2×78804247124359² (a number of 29 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 78804247124359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78804247124399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39402123562179 + 39402123562180.

It is an arithmetic number, because the mean of its divisors is an integer number (39402123562180).

Almost surely, 2^{78804247124359} is an apocalyptic number.

78804247124359 is a deficient number, since it is larger than the sum of its proper divisors (1).

78804247124359 is an equidigital number, since it uses as much as digits as its factorization.

78804247124359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 78804247124359 in words is "seventy-eight trillion, eight hundred four billion, two hundred forty-seven million, one hundred twenty-four thousand, three hundred fifty-nine".