7723919412 has 72 divisors (see below), whose sum is σ = 21347857440. Its totient is φ = 2335245120.

The previous prime is 7723919407. The next prime is 7723919443. The reversal of 7723919412 is 2149193277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153414 + ... + 197442.

It is an arithmetic number, because the mean of its divisors is an integer number (296498020).

Almost surely, 2^7723919412 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 7723919412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10673928720).

7723919412 is an abundant number, since it is smaller than the sum of its proper divisors (13623938028).

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

7723919412 is a wasteful number, since it uses less digits than its factorization.

7723919412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44493 (or 44488 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 7723919412 is about 87885.8316908932. The cubic root of 7723919412 is about 1976.7234360525.

The spelling of 7723919412 in words is "seven billion, seven hundred twenty-three million, nine hundred nineteen thousand, four hundred twelve".