78519913132853 has 2 divisors, whose sum is σ = 78519913132854. Its totient is φ = 78519913132852.

The previous prime is 78519913132811. The next prime is 78519913132873. The reversal of 78519913132853 is 35823131991587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40492439576689 + 38027473556164 = 6363367^2 + 6166642^2 .

It is a cyclic number.

It is not a de Polignac number, because 78519913132853 - 2¹² = 78519913128757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78519913132853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78519913132873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39259956566426 + 39259956566427.

It is an arithmetic number, because the mean of its divisors is an integer number (39259956566427).

Almost surely, 2^{78519913132853} is an apocalyptic number.

It is an amenable number.

78519913132853 is a deficient number, since it is larger than the sum of its proper divisors (1).

78519913132853 is an equidigital number, since it uses as much as digits as its factorization.

78519913132853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 65.

The spelling of 78519913132853 in words is "seventy-eight trillion, five hundred nineteen billion, nine hundred thirteen million, one hundred thirty-two thousand, eight hundred fifty-three".