5428870857 has 20 divisors (see below), whose sum is σ = 8112287700. Its totient is φ = 3618134784.

The previous prime is 5428870813. The next prime is 5428870859. The reversal of 5428870857 is 7580788245.

It can be written as a sum of positive squares in 2 ways, for example, as 3554067456 + 1874803401 = 59616^2 + 43299^2 .

It is not a de Polignac number, because 5428870857 - 2⁶ = 5428870793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5428870859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 319693 + ... + 336245.

It is an arithmetic number, because the mean of its divisors is an integer number (405614385).

Almost surely, 2^5428870857 is an apocalyptic number.

It is an amenable number.

5428870857 is a deficient number, since it is larger than the sum of its proper divisors (2683416843).

5428870857 is a wasteful number, since it uses less digits than its factorization.

5428870857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614 (or 20605 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 54.

The square root of 5428870857 is about 73680.8717171560. The cubic root of 5428870857 is about 1757.5317131494.

The spelling of 5428870857 in words is "five billion, four hundred twenty-eight million, eight hundred seventy thousand, eight hundred fifty-seven".