5261744440 has 32 divisors (see below), whose sum is σ = 11988792000. Its totient is φ = 2078054784.

The previous prime is 5261744437. The next prime is 5261744447. The reversal of 5261744440 is 444471625.

It is a self number, because there is not a number n which added to its sum of digits gives 5261744440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261744447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829395 + ... + 835714.

It is an arithmetic number, because the mean of its divisors is an integer number (374649750).

Almost surely, 2^5261744440 is an apocalyptic number.

It is an amenable number.

5261744440 is an abundant number, since it is smaller than the sum of its proper divisors (6727047560).

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

5261744440 is a wasteful number, since it uses less digits than its factorization.

5261744440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665199 (or 1665195 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 5261744440 is about 72537.8827923727. The cubic root of 5261744440 is about 1739.3083568104.

The spelling of 5261744440 in words is "five billion, two hundred sixty-one million, seven hundred forty-four thousand, four hundred forty".