3128677425 has 36 divisors (see below), whose sum is σ = 5606834220. Its totient is φ = 1667727360.

The previous prime is 3128677423. The next prime is 3128677481. The reversal of 3128677425 is 5247768213.

It can be written as a sum of positive squares in 6 ways, for example, as 9678321 + 3118999104 = 3111^2 + 55848^2 .

It is not a de Polignac number, because 3128677425 - 2¹ = 3128677423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3128677421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 746937 + ... + 751113.

It is an arithmetic number, because the mean of its divisors is an integer number (155745395).

Almost surely, 2^3128677425 is an apocalyptic number.

It is an amenable number.

3128677425 is a deficient number, since it is larger than the sum of its proper divisors (2478156795).

3128677425 is a wasteful number, since it uses less digits than its factorization.

3128677425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522 (or 7514 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 3128677425 is about 55934.5816557163. The cubic root of 3128677425 is about 1462.5821299483.

The spelling of 3128677425 in words is "three billion, one hundred twenty-eight million, six hundred seventy-seven thousand, four hundred twenty-five".