7826344812 has 144 divisors (see below), whose sum is σ = 23280260640. Its totient is φ = 2185574400.

The previous prime is 7826344789. The next prime is 7826344829. The reversal of 7826344812 is 2184436287.

It is a happy number.

7826344812 is a `hidden beast` number, since 7 + 8 + 2 + 634 + 4 + 8 + 1 + 2 = 666.

It is a super-2 number, since 2×7826344812² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5255364 + ... + 5256852.

Almost surely, 2^7826344812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7826344812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11640130320).

7826344812 is an abundant number, since it is smaller than the sum of its proper divisors (15453915828).

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

7826344812 is a wasteful number, since it uses less digits than its factorization.

7826344812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544 (or 2539 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 7826344812 is about 88466.6310650519. The cubic root of 7826344812 is about 1985.4227442756.

The spelling of 7826344812 in words is "seven billion, eight hundred twenty-six million, three hundred forty-four thousand, eight hundred twelve".