4544645724 has 48 divisors (see below), whose sum is σ = 11875225600. Its totient is φ = 1502949168.

The previous prime is 4544645723. The next prime is 4544645737. The reversal of 4544645724 is 4275464454.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4544645724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544645723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151954 + ... + 179385.

Almost surely, 2^4544645724 is an apocalyptic number.

It is an amenable number.

4544645724 is an abundant number, since it is smaller than the sum of its proper divisors (7330579876).

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

4544645724 is a wasteful number, since it uses less digits than its factorization.

4544645724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331479 (or 331471 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 45.

The square root of 4544645724 is about 67413.9875990139. The cubic root of 4544645724 is about 1656.4055533711.

The spelling of 4544645724 in words is "four billion, five hundred forty-four million, six hundred forty-five thousand, seven hundred twenty-four".