78836428258 has 32 divisors (see below), whose sum is σ = 138173299200. Its totient is φ = 33032315904.

The previous prime is 78836428241. The next prime is 78836428267. The reversal of 78836428258 is 85282463887.

It is a junction number, because it is equal to n+sod(n) for n = 78836428196 and 78836428205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546798 + ... + 675766.

It is an arithmetic number, because the mean of its divisors is an integer number (4317915600).

Almost surely, 2^78836428258 is an apocalyptic number.

78836428258 is a deficient number, since it is larger than the sum of its proper divisors (59336870942).

78836428258 is a wasteful number, since it uses less digits than its factorization.

78836428258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129954.

The product of its digits is 41287680, while the sum is 61.

The spelling of 78836428258 in words is "seventy-eight billion, eight hundred thirty-six million, four hundred twenty-eight thousand, two hundred fifty-eight".