78854093018 has 16 divisors (see below), whose sum is σ = 125790040320. Its totient is φ = 36966865536.

The previous prime is 78854092991. The next prime is 78854093029. The reversal of 78854093018 is 81039045887.

It is a Curzon 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, 10692746 + ... + 10700117.

It is an arithmetic number, because the mean of its divisors is an integer number (7861877520).

Almost surely, 2^78854093018 is an apocalyptic number.

78854093018 is a deficient number, since it is larger than the sum of its proper divisors (46935947302).

78854093018 is a wasteful number, since it uses less digits than its factorization.

78854093018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21392981.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 78854093018 in words is "seventy-eight billion, eight hundred fifty-four million, ninety-three thousand, eighteen".