5128982309 has 8 divisors (see below), whose sum is σ = 5608004160. Its totient is φ = 4652085600.

The previous prime is 5128982281. The next prime is 5128982317. The reversal of 5128982309 is 9032898215.

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

It is a cyclic number.

It is not a de Polignac number, because 5128982309 - 2¹² = 5128978213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128984309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526232 + ... + 535889.

It is an arithmetic number, because the mean of its divisors is an integer number (701000520).

Almost surely, 2^5128982309 is an apocalyptic number.

It is an amenable number.

5128982309 is a deficient number, since it is larger than the sum of its proper divisors (479021851).

5128982309 is a wasteful number, since it uses less digits than its factorization.

5128982309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062571.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 5128982309 is about 71616.9135679554. The cubic root of 5128982309 is about 1724.5550693415. Note that the first 3 decimals are identical.

The spelling of 5128982309 in words is "five billion, one hundred twenty-eight million, nine hundred eighty-two thousand, three hundred nine".