78798956943331 has 16 divisors (see below), whose sum is σ = 82671207212160. Its totient is φ = 75004677941760.

The previous prime is 78798956943293. The next prime is 78798956943353. The reversal of 78798956943331 is 13334965989787.

It is a cyclic number.

It is not a de Polignac number, because 78798956943331 - 2⁹ = 78798956942819 is a prime.

It is a super-2 number, since 2×78798956943331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78798956943391) 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 in 15 ways as a sum of consecutive naturals, for example, 4086315 + ... + 13202116.

It is an arithmetic number, because the mean of its divisors is an integer number (5166950450760).

Almost surely, 2^{78798956943331} is an apocalyptic number.

78798956943331 is a deficient number, since it is larger than the sum of its proper divisors (3872250268829).

78798956943331 is a wasteful number, since it uses less digits than its factorization.

78798956943331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17290686.

The product of its digits is 7407106560, while the sum is 82.

The spelling of 78798956943331 in words is "seventy-eight trillion, seven hundred ninety-eight billion, nine hundred fifty-six million, nine hundred forty-three thousand, three hundred thirty-one".