76378518 has 128 divisors (see below), whose sum is σ = 196992000. Its totient is φ = 21772800.

The previous prime is 76378507. The next prime is 76378541. The reversal of 76378518 is 81587367.

76378518 is a `hidden beast` number, since 7 + 63 + 78 + 518 = 666.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 505743 + ... + 505893.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^76378518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76378518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98496000).

76378518 is an abundant number, since it is smaller than the sum of its proper divisors (120613482).

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

76378518 is a wasteful number, since it uses less digits than its factorization.

76378518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 221 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 76378518 is about 8739.4804193384. The cubic root of 76378518 is about 424.2844114992.

The spelling of 76378518 in words is "seventy-six million, three hundred seventy-eight thousand, five hundred eighteen".