78873914026 has 8 divisors (see below), whose sum is σ = 119064443940. Its totient is φ = 39185766048.

The previous prime is 78873914023. The next prime is 78873914039. The reversal of 78873914026 is 62041937887.

It is a Cunningham number, because it is equal to 280845²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 78873914025 + 1 = 280845^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78873914023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125595091 + ... + 125595718.

Almost surely, 2^78873914026 is an apocalyptic number.

78873914026 is a deficient number, since it is larger than the sum of its proper divisors (40190529914).

78873914026 is a wasteful number, since it uses less digits than its factorization.

78873914026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251190968.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 78873914026 in words is "seventy-eight billion, eight hundred seventy-three million, nine hundred fourteen thousand, twenty-six".