5645506877824 has 128 divisors (see below), whose sum is σ = 13041644332320. Its totient is φ = 2405789859840.

The previous prime is 5645506877771. The next prime is 5645506877833. The reversal of 5645506877824 is 4287786055465.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 5645506877824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5692684 + ... + 6610420.

Almost surely, 2^{5645506877824} 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 5645506877824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6520822166160).

5645506877824 is an abundant number, since it is smaller than the sum of its proper divisors (7396137454496).

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

5645506877824 is a wasteful number, since it uses less digits than its factorization.

5645506877824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918036 (or 918024 counting only the distinct ones).

The product of its (nonzero) digits is 451584000, while the sum is 67.

The spelling of 5645506877824 in words is "five trillion, six hundred forty-five billion, five hundred six million, eight hundred seventy-seven thousand, eight hundred twenty-four".