78716440093 has 16 divisors (see below), whose sum is σ = 88133875200. Its totient is φ = 69947481600.

The previous prime is 78716440039. The next prime is 78716440129. The reversal of 78716440093 is 39004461787.

It is a cyclic number.

It is not a de Polignac number, because 78716440093 - 2²⁵ = 78682885661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78716440003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1799943 + ... + 1843156.

It is an arithmetic number, because the mean of its divisors is an integer number (5508367200).

Almost surely, 2^78716440093 is an apocalyptic number.

It is an amenable number.

78716440093 is a deficient number, since it is larger than the sum of its proper divisors (9417435107).

78716440093 is a wasteful number, since it uses less digits than its factorization.

78716440093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643188.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 78716440093 in words is "seventy-eight billion, seven hundred sixteen million, four hundred forty thousand, ninety-three".