5428889761 has 3 divisors (see below), whose sum is σ = 5428963443. Its totient is φ = 5428816080.

The previous prime is 5428889737. The next prime is 5428889777. The reversal of 5428889761 is 1679888245.

It is a happy number.

The square root of 5428889761 is 73681.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 534488161 + 4894401600 = 23119^2 + 69960^2 .

It is not a de Polignac number, because 5428889761 - 2¹¹ = 5428887713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5428889696 and 5428889705.

It is not an unprimeable number, because it can be changed into a prime (5428889461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 36841 + ... + 110521.

It is an arithmetic number, because the mean of its divisors is an integer number (1809654481).

Almost surely, 2^5428889761 is an apocalyptic number.

5428889761 is the 73681-st square number.

5428889761 is the 36841-st centered octagonal number.

It is an amenable number.

5428889761 is a deficient number, since it is larger than the sum of its proper divisors (73682).

5428889761 is an frugal number, since it uses more digits than its factorization.

5428889761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147362 (or 73681 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The cubic root of 5428889761 is about 1757.5337531280.

The spelling of 5428889761 in words is "five billion, four hundred twenty-eight million, eight hundred eighty-nine thousand, seven hundred sixty-one".