78851438168 has 16 divisors (see below), whose sum is σ = 151284736680. Its totient is φ = 38508841728.

The previous prime is 78851438123. The next prime is 78851438201. The reversal of 78851438168 is 86183415887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114609305 + ... + 114609992.

Almost surely, 2^78851438168 is an apocalyptic number.

It is an amenable number.

78851438168 is a deficient number, since it is larger than the sum of its proper divisors (72433298512).

78851438168 is a wasteful number, since it uses less digits than its factorization.

78851438168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229219346 (or 229219342 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 59.

The spelling of 78851438168 in words is "seventy-eight billion, eight hundred fifty-one million, four hundred thirty-eight thousand, one hundred sixty-eight".