78983756115 has 64 divisors (see below), whose sum is σ = 140304794112. Its totient is φ = 37936229760.

The previous prime is 78983756051. The next prime is 78983756141. The reversal of 78983756115 is 51165738987.

It is a happy number.

It is not a de Polignac number, because 78983756115 - 2⁶ = 78983756051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2117769 + ... + 2154741.

It is an arithmetic number, because the mean of its divisors is an integer number (2192262408).

Almost surely, 2^78983756115 is an apocalyptic number.

78983756115 is a deficient number, since it is larger than the sum of its proper divisors (61321037997).

78983756115 is a wasteful number, since it uses less digits than its factorization.

78983756115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37121 (or 37099 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 60.

The spelling of 78983756115 in words is "seventy-eight billion, nine hundred eighty-three million, seven hundred fifty-six thousand, one hundred fifteen".