78316987183 has 8 divisors (see below), whose sum is σ = 83008244448. Its totient is φ = 73635105024.

The previous prime is 78316987181. The next prime is 78316987201. The reversal of 78316987183 is 38178961387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78316987183 - 2¹ = 78316987181 is a prime.

It is a super-2 number, since 2×78316987183² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78316987181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326566 + ... + 2359987.

It is an arithmetic number, because the mean of its divisors is an integer number (10376030556).

Almost surely, 2^78316987183 is an apocalyptic number.

78316987183 is a deficient number, since it is larger than the sum of its proper divisors (4691257265).

78316987183 is a wasteful number, since it uses less digits than its factorization.

78316987183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687553.

The product of its digits is 12192768, while the sum is 61.

The spelling of 78316987183 in words is "seventy-eight billion, three hundred sixteen million, nine hundred eighty-seven thousand, one hundred eighty-three".