3128774986 has 16 divisors (see below), whose sum is σ = 4717619424. Its totient is φ = 1556254224.

The previous prime is 3128774983. The next prime is 3128775053. The reversal of 3128774986 is 6894778213.

It is not an unprimeable number, because it can be changed into a prime (3128774983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359640 + ... + 368236.

It is an arithmetic number, because the mean of its divisors is an integer number (294851214).

Almost surely, 2^3128774986 is an apocalyptic number.

3128774986 is a deficient number, since it is larger than the sum of its proper divisors (1588844438).

3128774986 is a wasteful number, since it uses less digits than its factorization.

3128774986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9525.

The product of its digits is 4064256, while the sum is 55.

The square root of 3128774986 is about 55935.4537480478. The cubic root of 3128774986 is about 1462.5973322711.

The spelling of 3128774986 in words is "three billion, one hundred twenty-eight million, seven hundred seventy-four thousand, nine hundred eighty-six".