3128485979 has 6 divisors (see below), whose sum is σ = 3323340084. Its totient is φ = 2944457120.

The previous prime is 3128485973. The next prime is 3128485999. The reversal of 3128485979 is 9795848213.

It is not a de Polignac number, because 3128485979 - 2⁴ = 3128485963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3128485973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5412317 + ... + 5412894.

It is an arithmetic number, because the mean of its divisors is an integer number (553890014).

Almost surely, 2^3128485979 is an apocalyptic number.

3128485979 is a deficient number, since it is larger than the sum of its proper divisors (194854105).

3128485979 is a wasteful number, since it uses less digits than its factorization.

3128485979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10825245 (or 10825228 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 3128485979 is about 55932.8702910909. The cubic root of 3128485979 is about 1462.5522971924.

The spelling of 3128485979 in words is "three billion, one hundred twenty-eight million, four hundred eighty-five thousand, nine hundred seventy-nine".