5628316981 has 4 divisors (see below), whose sum is σ = 6432362272. Its totient is φ = 4824271692.

The previous prime is 5628316979. The next prime is 5628317017. The reversal of 5628316981 is 1896138265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5628316981 - 2¹ = 5628316979 is a prime.

It is a super-2 number, since 2×5628316981² = 63355904077225908722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5628316921) 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 3 ways as a sum of consecutive naturals, for example, 402022635 + ... + 402022648.

It is an arithmetic number, because the mean of its divisors is an integer number (1608090568).

Almost surely, 2^5628316981 is an apocalyptic number.

It is an amenable number.

5628316981 is a deficient number, since it is larger than the sum of its proper divisors (804045291).

5628316981 is an equidigital number, since it uses as much as digits as its factorization.

5628316981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804045290.

The product of its digits is 622080, while the sum is 49.

The square root of 5628316981 is about 75022.1099476681. The cubic root of 5628316981 is about 1778.7961582955.

The spelling of 5628316981 in words is "five billion, six hundred twenty-eight million, three hundred sixteen thousand, nine hundred eighty-one".