78017326242 has 16 divisors (see below), whose sum is σ = 156040920480. Its totient is φ = 26004730752.

The previous prime is 78017326237. The next prime is 78017326253. The reversal of 78017326242 is 24262371087.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 78017326194 and 78017326203.

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, 90808 + ... + 405315.

It is an arithmetic number, because the mean of its divisors is an integer number (9752557530).

Almost surely, 2^78017326242 is an apocalyptic number.

78017326242 is an abundant number, since it is smaller than the sum of its proper divisors (78023594238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78017326242 is a wasteful number, since it uses less digits than its factorization.

78017326242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522337.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 78017326242 in words is "seventy-eight billion, seventeen million, three hundred twenty-six thousand, two hundred forty-two".