78598926026 has 16 divisors (see below), whose sum is σ = 125260174440. Its totient is φ = 36918786240.

The previous prime is 78598926023. The next prime is 78598926031. The reversal of 78598926026 is 62062989587.

It is a Cunningham number, because it is equal to 280355²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 70331570401 + 8267355625 = 265201^2 + 90925^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78598926026.

It is not an unprimeable number, because it can be changed into a prime (78598926023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18310745 + ... + 18315036.

Almost surely, 2^78598926026 is an apocalyptic number.

78598926026 is a deficient number, since it is larger than the sum of its proper divisors (46661248414).

78598926026 is a wasteful number, since it uses less digits than its factorization.

78598926026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36625849.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 78598926026 in words is "seventy-eight billion, five hundred ninety-eight million, nine hundred twenty-six thousand, twenty-six".