78039074018 has 8 divisors (see below), whose sum is σ = 117065925120. Its totient is φ = 39017098980.

The previous prime is 78039074011. The next prime is 78039074021. The reversal of 78039074018 is 81047093087.

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

It is not an unprimeable number, because it can be changed into a prime (78039074011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178738 + ... + 1243181.

It is an arithmetic number, because the mean of its divisors is an integer number (14633240640).

Almost surely, 2^78039074018 is an apocalyptic number.

78039074018 is a deficient number, since it is larger than the sum of its proper divisors (39026851102).

78039074018 is a wasteful number, since it uses less digits than its factorization.

78039074018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438032.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 78039074018 in words is "seventy-eight billion, thirty-nine million, seventy-four thousand, eighteen".