78268118 has 16 divisors (see below), whose sum is σ = 122856576. Its totient is φ = 37350720.

The previous prime is 78268117. The next prime is 78268133. The reversal of 78268118 is 81186287.

It is a super-2 number, since 2×78268118² = 12251796590523848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78268117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4121 + ... + 13172.

It is an arithmetic number, because the mean of its divisors is an integer number (7678536).

Almost surely, 2^78268118 is an apocalyptic number.

78268118 is a deficient number, since it is larger than the sum of its proper divisors (44588458).

78268118 is a wasteful number, since it uses less digits than its factorization.

78268118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17399.

The product of its digits is 43008, while the sum is 41.

The square root of 78268118 is about 8846.9270371129. The cubic root of 78268118 is about 427.7548709884.

The spelling of 78268118 in words is "seventy-eight million, two hundred sixty-eight thousand, one hundred eighteen".