78853014893 has 4 divisors (see below), whose sum is σ = 78903595680. Its totient is φ = 78802434108.

The previous prime is 78853014869. The next prime is 78853014937. The reversal of 78853014893 is 39841035887.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78853014893 - 2²⁴ = 78836237677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78853014803) 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, 25288055 + ... + 25291172.

It is an arithmetic number, because the mean of its divisors is an integer number (19725898920).

Almost surely, 2^78853014893 is an apocalyptic number.

It is an amenable number.

78853014893 is a deficient number, since it is larger than the sum of its proper divisors (50580787).

78853014893 is a wasteful number, since it uses less digits than its factorization.

78853014893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50580786.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 78853014893 in words is "seventy-eight billion, eight hundred fifty-three million, fourteen thousand, eight hundred ninety-three".