3128449967 has 8 divisors (see below), whose sum is σ = 3173044224. Its totient is φ = 3083902848.

The previous prime is 3128449957. The next prime is 3128449969. The reversal of 3128449967 is 7699448213.

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 3128449967 - 2¹⁰ = 3128448943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128449969) 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, 134738 + ... + 156240.

It is an arithmetic number, because the mean of its divisors is an integer number (396630528).

Almost surely, 2^3128449967 is an apocalyptic number.

3128449967 is a deficient number, since it is larger than the sum of its proper divisors (44594257).

3128449967 is a wasteful number, since it uses less digits than its factorization.

3128449967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569.

The product of its digits is 2612736, while the sum is 53.

The square root of 3128449967 is about 55932.5483685483. The cubic root of 3128449967 is about 1462.5466853580.

The spelling of 3128449967 in words is "three billion, one hundred twenty-eight million, four hundred forty-nine thousand, nine hundred sixty-seven".