76668018 has 16 divisors (see below), whose sum is σ = 175241280. Its totient is φ = 21905136.

The previous prime is 76668017. The next prime is 76668019. The reversal of 76668018 is 81086667.

It is an interprime number because it is at equal distance from previous prime (76668017) and next prime (76668019).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1825429 = 76668018 / (7 + 6 + 6 + 6 + 8 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (76668017) 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, 912673 + ... + 912756.

It is an arithmetic number, because the mean of its divisors is an integer number (10952580).

Almost surely, 2^76668018 is an apocalyptic number.

76668018 is an abundant number, since it is smaller than the sum of its proper divisors (98573262).

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

76668018 is a wasteful number, since it uses less digits than its factorization.

76668018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825441.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 76668018 is about 8756.0275239403. The cubic root of 76668018 is about 424.8197953437.

The spelling of 76668018 in words is "seventy-six million, six hundred sixty-eight thousand, eighteen".