5428721736 has 160 divisors (see below), whose sum is σ = 15995232000. Its totient is φ = 1717822080.

The previous prime is 5428721693. The next prime is 5428721777. The reversal of 5428721736 is 6371278245.

5428721736 is a `hidden beast` number, since 5 + 428 + 7 + 217 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5428721691 and 5428721700.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1062115 + ... + 1067213.

It is an arithmetic number, because the mean of its divisors is an integer number (99970200).

Almost surely, 2^5428721736 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 5428721736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7997616000).

5428721736 is an abundant number, since it is smaller than the sum of its proper divisors (10566510264).

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

5428721736 is a wasteful number, since it uses less digits than its factorization.

5428721736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201 (or 5188 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 5428721736 is about 73679.8597718535. The cubic root of 5428721736 is about 1757.5156209580.

It can be divided in two parts, 542 and 8721736, that added together give a palindrome (8722278).

The spelling of 5428721736 in words is "five billion, four hundred twenty-eight million, seven hundred twenty-one thousand, seven hundred thirty-six".