2543979628 has 12 divisors (see below), whose sum is σ = 4512950680. Its totient is φ = 1254565152.

The previous prime is 2543979601. The next prime is 2543979643. The reversal of 2543979628 is 8269793452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355838 + ... + 4356421.

Almost surely, 2^2543979628 is an apocalyptic number.

It is an amenable number.

2543979628 is a deficient number, since it is larger than the sum of its proper divisors (1968971052).

2543979628 is a wasteful number, since it uses less digits than its factorization.

2543979628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712336 (or 8712334 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 2543979628 is about 50437.8789006834. The cubic root of 2543979628 is about 1365.1211953914.

The spelling of 2543979628 in words is "two billion, five hundred forty-three million, nine hundred seventy-nine thousand, six hundred twenty-eight".