78842059198 has 32 divisors (see below), whose sum is σ = 138474620928. Its totient is φ = 32970067200.

The previous prime is 78842059193. The next prime is 78842059199. The reversal of 78842059198 is 89195024887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78842059193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312438 + ... + 505273.

It is an arithmetic number, because the mean of its divisors is an integer number (4327331904).

Almost surely, 2^78842059198 is an apocalyptic number.

78842059198 is a deficient number, since it is larger than the sum of its proper divisors (59632561730).

78842059198 is a wasteful number, since it uses less digits than its factorization.

78842059198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817888.

The product of its (nonzero) digits is 11612160, while the sum is 61.

The spelling of 78842059198 in words is "seventy-eight billion, eight hundred forty-two million, fifty-nine thousand, one hundred ninety-eight".