5109609281 has 16 divisors (see below), whose sum is σ = 5926609920. Its totient is φ = 4314857040.

The previous prime is 5109609227. The next prime is 5109609293. The reversal of 5109609281 is 1829069015.

It is a happy number.

It is not a de Polignac number, because 5109609281 - 2¹⁸ = 5109347137 is a prime.

It is a super-2 number, since 2×5109609281² = 52216214008962673922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5109609881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107420 + ... + 147506.

It is an arithmetic number, because the mean of its divisors is an integer number (370413120).

Almost surely, 2^5109609281 is an apocalyptic number.

It is an amenable number.

5109609281 is a deficient number, since it is larger than the sum of its proper divisors (817000639).

5109609281 is a wasteful number, since it uses less digits than its factorization.

5109609281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40364.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 5109609281 is about 71481.5310482365. The cubic root of 5109609281 is about 1722.3810183635.

The spelling of 5109609281 in words is "five billion, one hundred nine million, six hundred nine thousand, two hundred eighty-one".