2628542831 has 4 divisors (see below), whose sum is σ = 2630082600. Its totient is φ = 2627003064.

The previous prime is 2628542809. The next prime is 2628542843. The reversal of 2628542831 is 1382458262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2628542831 - 2⁶ = 2628542767 is a prime.

It is a super-2 number, since 2×2628542831² = 13818474828802989122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628542881) 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, 767321 + ... + 770738.

It is an arithmetic number, because the mean of its divisors is an integer number (657520650).

Almost surely, 2^2628542831 is an apocalyptic number.

2628542831 is a deficient number, since it is larger than the sum of its proper divisors (1539769).

2628542831 is a wasteful number, since it uses less digits than its factorization.

2628542831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539768.

The product of its digits is 184320, while the sum is 41.

The square root of 2628542831 is about 51269.3166621128. The cubic root of 2628542831 is about 1380.0824061622.

The spelling of 2628542831 in words is "two billion, six hundred twenty-eight million, five hundred forty-two thousand, eight hundred thirty-one".