3128475839 has 8 divisors (see below), whose sum is σ = 3138251952. Its totient is φ = 3118711680.

The previous prime is 3128475821. The next prime is 3128475859. The reversal of 3128475839 is 9385748213.

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 3128475839 - 2²⁰ = 3127427263 is a prime.

It is a super-2 number, since 2×3128475839² = 19574722150413507842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128475859) 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, 942647 + ... + 945959.

It is an arithmetic number, because the mean of its divisors is an integer number (392281494).

Almost surely, 2^3128475839 is an apocalyptic number.

3128475839 is a deficient number, since it is larger than the sum of its proper divisors (9776113).

3128475839 is a wasteful number, since it uses less digits than its factorization.

3128475839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977.

The product of its digits is 1451520, while the sum is 50.

The square root of 3128475839 is about 55932.7796466437. The cubic root of 3128475839 is about 1462.5507170568.

The spelling of 3128475839 in words is "three billion, one hundred twenty-eight million, four hundred seventy-five thousand, eight hundred thirty-nine".