78842744116 has 6 divisors (see below), whose sum is σ = 137974802210. Its totient is φ = 39421372056.

The previous prime is 78842744089. The next prime is 78842744263. The reversal of 78842744116 is 61144724887.

It can be written as a sum of positive squares in only one way, i.e., 41210624016 + 37632120100 = 203004^2 + 193990^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9855343011 + ... + 9855343018.

Almost surely, 2^78842744116 is an apocalyptic number.

It is an amenable number.

78842744116 is a deficient number, since it is larger than the sum of its proper divisors (59132058094).

78842744116 is a wasteful number, since it uses less digits than its factorization.

78842744116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19710686033 (or 19710686031 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 52.

The spelling of 78842744116 in words is "seventy-eight billion, eight hundred forty-two million, seven hundred forty-four thousand, one hundred sixteen".