5386891281 has 8 divisors (see below), whose sum is σ = 7192770624. Its totient is φ = 3586136400.

The previous prime is 5386891271. The next prime is 5386891283. The reversal of 5386891281 is 1821986835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5386891281 is a prime.

It is a super-2 number, since 2×5386891281² = 58037195346627641922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5386891283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278661 + ... + 1282866.

It is an arithmetic number, because the mean of its divisors is an integer number (899096328).

Almost surely, 2^5386891281 is an apocalyptic number.

It is an amenable number.

5386891281 is a deficient number, since it is larger than the sum of its proper divisors (1805879343).

5386891281 is a wasteful number, since it uses less digits than its factorization.

5386891281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562231.

The product of its digits is 829440, while the sum is 51.

The square root of 5386891281 is about 73395.4445520974. Note that the first 3 decimals coincide. The cubic root of 5386891281 is about 1752.9898583071.

The spelling of 5386891281 in words is "five billion, three hundred eighty-six million, eight hundred ninety-one thousand, two hundred eighty-one".