7643403792 has 120 divisors (see below), whose sum is σ = 23090932800. Its totient is φ = 2352962304.

The previous prime is 7643403787. The next prime is 7643403799. The reversal of 7643403792 is 2973043467.

It is not an unprimeable number, because it can be changed into a prime (7643403799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56259 + ... + 135837.

It is an arithmetic number, because the mean of its divisors is an integer number (192424440).

Almost surely, 2^7643403792 is an apocalyptic number.

7643403792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7643403792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11545466400).

7643403792 is an abundant number, since it is smaller than the sum of its proper divisors (15447529008).

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

7643403792 is a wasteful number, since it uses less digits than its factorization.

7643403792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79645 (or 79636 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The square root of 7643403792 is about 87426.5622794354. The cubic root of 7643403792 is about 1969.8308487642.

The spelling of 7643403792 in words is "seven billion, six hundred forty-three million, four hundred three thousand, seven hundred ninety-two".