5440126643 has 8 divisors (see below), whose sum is σ = 6222534912. Its totient is φ = 4659030216.

The previous prime is 5440126631. The next prime is 5440126649. The reversal of 5440126643 is 3466210445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5440126643 - 2⁶ = 5440126579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440126649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319055 + ... + 335672.

It is an arithmetic number, because the mean of its divisors is an integer number (777816864).

Almost surely, 2^5440126643 is an apocalyptic number.

5440126643 is a deficient number, since it is larger than the sum of its proper divisors (782408269).

5440126643 is a wasteful number, since it uses less digits than its factorization.

5440126643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655921.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 5440126643 is about 73757.2141759706. The cubic root of 5440126643 is about 1758.7455164951.

The spelling of 5440126643 in words is "five billion, four hundred forty million, one hundred twenty-six thousand, six hundred forty-three".