78223008193 has 8 divisors (see below), whose sum is σ = 86117074560. Its totient is φ = 70459422480.

The previous prime is 78223008187. The next prime is 78223008221. The reversal of 78223008193 is 39180032287.

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

It is a de Polignac number, because none of the positive numbers 2^k-78223008193 is a prime.

It is a super-2 number, since 2×78223008193² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78223008793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32618905 + ... + 32621302.

It is an arithmetic number, because the mean of its divisors is an integer number (10764634320).

Almost surely, 2^78223008193 is an apocalyptic number.

It is an amenable number.

78223008193 is a deficient number, since it is larger than the sum of its proper divisors (7894066367).

78223008193 is a wasteful number, since it uses less digits than its factorization.

78223008193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65240327.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 78223008193 in words is "seventy-eight billion, two hundred twenty-three million, eight thousand, one hundred ninety-three".