78874985714 has 36 divisors (see below), whose sum is σ = 146200890186. Its totient is φ = 31815108864.

The previous prime is 78874985701. The next prime is 78874985719. The reversal of 78874985714 is 41758947887.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 69898370689 + 8976615025 = 264383^2 + 94745^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78874985719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1364147 + ... + 1420790.

Almost surely, 2^78874985714 is an apocalyptic number.

78874985714 is a deficient number, since it is larger than the sum of its proper divisors (67325904472).

78874985714 is a wasteful number, since it uses less digits than its factorization.

78874985714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784987 (or 2784963 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 68.

The spelling of 78874985714 in words is "seventy-eight billion, eight hundred seventy-four million, nine hundred eighty-five thousand, seven hundred fourteen".