2573121328 has 20 divisors (see below), whose sum is σ = 5036821720. Its totient is φ = 1273296384.

The previous prime is 2573121311. The next prime is 2573121329. The reversal of 2573121328 is 8231213752.

It is a junction number, because it is equal to n+sod(n) for n = 2573121293 and 2573121302.

It is not an unprimeable number, because it can be changed into a prime (2573121329) 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 3 ways as a sum of consecutive naturals, for example, 827418 + ... + 830521.

It is an arithmetic number, because the mean of its divisors is an integer number (251841086).

Almost surely, 2^2573121328 is an apocalyptic number.

It is an amenable number.

2573121328 is a deficient number, since it is larger than the sum of its proper divisors (2463700392).

2573121328 is a wasteful number, since it uses less digits than its factorization.

2573121328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658044 (or 1658038 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 2573121328 is about 50725.9433426329. The cubic root of 2573121328 is about 1370.3139792198.

The spelling of 2573121328 in words is "two billion, five hundred seventy-three million, one hundred twenty-one thousand, three hundred twenty-eight".