5428773644 has 48 divisors (see below), whose sum is σ = 11160764160. Its totient is φ = 2261753280.

The previous prime is 5428773641. The next prime is 5428773731. The reversal of 5428773644 is 4463778245.

It is a junction number, because it is equal to n+sod(n) for n = 5428773592 and 5428773601.

It is not an unprimeable number, because it can be changed into a prime (5428773641) 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, 2206487 + ... + 2208945.

It is an arithmetic number, because the mean of its divisors is an integer number (232515920).

Almost surely, 2^5428773644 is an apocalyptic number.

It is an amenable number.

5428773644 is an abundant number, since it is smaller than the sum of its proper divisors (5731990516).

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

5428773644 is a wasteful number, since it uses less digits than its factorization.

5428773644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4636 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 50.

The square root of 5428773644 is about 73680.2120246678. The cubic root of 5428773644 is about 1757.5212225732.

The spelling of 5428773644 in words is "five billion, four hundred twenty-eight million, seven hundred seventy-three thousand, six hundred forty-four".