3128628975 has 24 divisors (see below), whose sum is σ = 5234998272. Its totient is φ = 1648495200.

The previous prime is 3128628973. The next prime is 3128628989. The reversal of 3128628975 is 5798268213.

It is not a de Polignac number, because 3128628975 - 2¹ = 3128628973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128628973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245071 + ... + 257520.

It is an arithmetic number, because the mean of its divisors is an integer number (218124928).

Almost surely, 2^3128628975 is an apocalyptic number.

3128628975 is a deficient number, since it is larger than the sum of its proper divisors (2106369297).

3128628975 is a wasteful number, since it uses less digits than its factorization.

3128628975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502687 (or 502682 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 3128628975 is about 55934.1485588187. The cubic root of 3128628975 is about 1462.5745801693.

The spelling of 3128628975 in words is "three billion, one hundred twenty-eight million, six hundred twenty-eight thousand, nine hundred seventy-five".