78316916930 has 32 divisors (see below), whose sum is σ = 161118720000. Its totient is φ = 26849908800.

The previous prime is 78316916927. The next prime is 78316916933. The reversal of 78316916930 is 3961961387.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78316916927) and next prime (78316916933).

It is a super-2 number, since 2×78316916930² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78316916933) 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, 2303696 + ... + 2337444.

It is an arithmetic number, because the mean of its divisors is an integer number (5034960000).

Almost surely, 2^78316916930 is an apocalyptic number.

78316916930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78316916930 is an abundant number, since it is smaller than the sum of its proper divisors (82801803070).

78316916930 is a wasteful number, since it uses less digits than its factorization.

78316916930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66914.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 78316916930 in words is "seventy-eight billion, three hundred sixteen million, nine hundred sixteen thousand, nine hundred thirty".