5340444331521 has 64 divisors (see below), whose sum is σ = 8140317696000. Its totient is φ = 3091375203840.

The previous prime is 5340444331501. The next prime is 5340444331543. The reversal of 5340444331521 is 1251334440435.

It is not a de Polignac number, because 5340444331521 - 2⁶ = 5340444331457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 5340444331521.

It is not an unprimeable number, because it can be changed into a prime (5340444331501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5927850 + ... + 6769068.

It is an arithmetic number, because the mean of its divisors is an integer number (127192464000).

Almost surely, 2^{5340444331521} is an apocalyptic number.

It is an amenable number.

5340444331521 is a deficient number, since it is larger than the sum of its proper divisors (2799873364479).

5340444331521 is a wasteful number, since it uses less digits than its factorization.

5340444331521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841414.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 5340444331521 its reverse (1251334440435), we get a palindrome (6591778771956).

The spelling of 5340444331521 in words is "five trillion, three hundred forty billion, four hundred forty-four million, three hundred thirty-one thousand, five hundred twenty-one".