78794285633 has 4 divisors (see below), whose sum is σ = 90050612160. Its totient is φ = 67537959108.

The previous prime is 78794285629. The next prime is 78794285663. The reversal of 78794285633 is 33658249787.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33658249787 = 29 ⋅1160629303.

It is a cyclic number.

It is not a de Polignac number, because 78794285633 - 2² = 78794285629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78794285663) 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, 5628163253 + ... + 5628163266.

It is an arithmetic number, because the mean of its divisors is an integer number (22512653040).

Almost surely, 2^78794285633 is an apocalyptic number.

It is an amenable number.

78794285633 is a deficient number, since it is larger than the sum of its proper divisors (11256326527).

78794285633 is a wasteful number, since it uses less digits than its factorization.

78794285633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11256326526.

The product of its digits is 60963840, while the sum is 62.

The spelling of 78794285633 in words is "seventy-eight billion, seven hundred ninety-four million, two hundred eighty-five thousand, six hundred thirty-three".