78798956943353 has 2 divisors, whose sum is σ = 78798956943354. Its totient is φ = 78798956943352.

The previous prime is 78798956943293. The next prime is 78798956943379. The reversal of 78798956943353 is 35334965989787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76576973183929 + 2221983759424 = 8750827^2 + 1490632^2 .

It is a cyclic number.

It is not a de Polignac number, because 78798956943353 - 2⁸ = 78798956943097 is a prime.

It is not a weakly prime, because it can be changed into another prime (78798956948353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39399478471676 + 39399478471677.

It is an arithmetic number, because the mean of its divisors is an integer number (39399478471677).

Almost surely, 2^{78798956943353} is an apocalyptic number.

It is an amenable number.

78798956943353 is a deficient number, since it is larger than the sum of its proper divisors (1).

78798956943353 is an equidigital number, since it uses as much as digits as its factorization.

78798956943353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37035532800, while the sum is 86.

The spelling of 78798956943353 in words is "seventy-eight trillion, seven hundred ninety-eight billion, nine hundred fifty-six million, nine hundred forty-three thousand, three hundred fifty-three".