78826445724 has 48 divisors (see below), whose sum is σ = 198136995840. Its totient is φ = 24246909120.

The previous prime is 78826445657. The next prime is 78826445741. The reversal of 78826445724 is 42754462887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448789 + ... + 599219.

It is an arithmetic number, because the mean of its divisors is an integer number (4127854080).

Almost surely, 2^78826445724 is an apocalyptic number.

It is an amenable number.

78826445724 is an abundant number, since it is smaller than the sum of its proper divisors (119310550116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78826445724 is a wasteful number, since it uses less digits than its factorization.

78826445724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153810 (or 153808 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 57.

The spelling of 78826445724 in words is "seventy-eight billion, eight hundred twenty-six million, four hundred forty-five thousand, seven hundred twenty-four".