5440064512 has 88 divisors (see below), whose sum is σ = 11715259392. Its totient is φ = 2517504000.

The previous prime is 5440064507. The next prime is 5440064537. The reversal of 5440064512 is 2154600445.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726387 + ... + 733837.

Almost surely, 2^5440064512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5440064512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5857629696).

5440064512 is an abundant number, since it is smaller than the sum of its proper divisors (6275194880).

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

5440064512 is a wasteful number, since it uses less digits than its factorization.

5440064512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525 (or 7507 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 5440064512 is about 73756.7929888495. The cubic root of 5440064512 is about 1758.7388209994.

Adding to 5440064512 its reverse (2154600445), we get a palindrome (7594664957).

The spelling of 5440064512 in words is "five billion, four hundred forty million, sixty-four thousand, five hundred twelve".