78518346807 has 16 divisors (see below), whose sum is σ = 108075912192. Its totient is φ = 50653412160.

The previous prime is 78518346791. The next prime is 78518346847. The reversal of 78518346807 is 70864381587.

It is not a de Polignac number, because 78518346807 - 2⁴ = 78518346791 is a prime.

It is a super-3 number, since 3×78518346807³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78518346847) 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, 2111923 + ... + 2148779.

It is an arithmetic number, because the mean of its divisors is an integer number (6754744512).

Almost surely, 2^78518346807 is an apocalyptic number.

78518346807 is a deficient number, since it is larger than the sum of its proper divisors (29557565385).

78518346807 is a wasteful number, since it uses less digits than its factorization.

78518346807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59798.

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 78518346807 in words is "seventy-eight billion, five hundred eighteen million, three hundred forty-six thousand, eight hundred seven".