78018974 has 16 divisors (see below), whose sum is σ = 127806336. Its totient is φ = 35424600.

The previous prime is 78018953. The next prime is 78018991. The reversal of 78018974 is 47981087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32069 + ... + 34415.

It is an arithmetic number, because the mean of its divisors is an integer number (7987896).

Almost surely, 2^78018974 is an apocalyptic number.

78018974 is a deficient number, since it is larger than the sum of its proper divisors (49787362).

78018974 is a wasteful number, since it uses less digits than its factorization.

78018974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 78018974 is about 8832.8349922321. The cubic root of 78018974 is about 427.3005104147.

The spelling of 78018974 in words is "seventy-eight million, eighteen thousand, nine hundred seventy-four".