78315168 has 48 divisors (see below), whose sum is σ = 206248896. Its totient is φ = 26019840.

The previous prime is 78315163. The next prime is 78315173. The reversal of 78315168 is 86151387.

It is an interprime number because it is at equal distance from previous prime (78315163) and next prime (78315173).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×78315168² = 12266531077736448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78315163) 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, 32733 + ... + 35043.

It is an arithmetic number, because the mean of its divisors is an integer number (4296852).

Almost surely, 2^78315168 is an apocalyptic number.

It is an amenable number.

78315168 is an abundant number, since it is smaller than the sum of its proper divisors (127933728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78315168 is a wasteful number, since it uses less digits than its factorization.

78315168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2669 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 78315168 is about 8849.5857530169. The cubic root of 78315168 is about 427.8405671643.

It can be divided in two parts, 783 and 15168, that added together give a palindrome (15951).

The spelling of 78315168 in words is "seventy-eight million, three hundred fifteen thousand, one hundred sixty-eight".