78322548823 has 16 divisors (see below), whose sum is σ = 82835251200. Its totient is φ = 73944374400.

The previous prime is 78322548769. The next prime is 78322548833. The reversal of 78322548823 is 32884522387.

It is a de Polignac number, because none of the positive numbers 2^k-78322548823 is a prime.

It is a super-2 number, since 2×78322548823² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78322548833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366703 + ... + 539551.

It is an arithmetic number, because the mean of its divisors is an integer number (5177203200).

Almost surely, 2^78322548823 is an apocalyptic number.

78322548823 is a deficient number, since it is larger than the sum of its proper divisors (4512702377).

78322548823 is a wasteful number, since it uses less digits than its factorization.

78322548823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173238.

The product of its digits is 5160960, while the sum is 52.

The spelling of 78322548823 in words is "seventy-eight billion, three hundred twenty-two million, five hundred forty-eight thousand, eight hundred twenty-three".