2643338752 has 40 divisors (see below), whose sum is σ = 5451918912. Its totient is φ = 1279027200.

The previous prime is 2643338743. The next prime is 2643338759. The reversal of 2643338752 is 2578333462.

It is a junction number, because it is equal to n+sod(n) for n = 2643338699 and 2643338708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643338759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67399 + ... + 99142.

Almost surely, 2^2643338752 is an apocalyptic number.

It is an amenable number.

2643338752 is an abundant number, since it is smaller than the sum of its proper divisors (2808580160).

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

2643338752 is an equidigital number, since it uses as much as digits as its factorization.

2643338752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166590 (or 166574 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 2643338752 is about 51413.4102350739. The cubic root of 2643338752 is about 1382.6670316059.

The spelling of 2643338752 in words is "two billion, six hundred forty-three million, three hundred thirty-eight thousand, seven hundred fifty-two".