2543944902 has 48 divisors (see below), whose sum is σ = 5317144560. Its totient is φ = 810453952.

The previous prime is 2543944817. The next prime is 2543944913. The reversal of 2543944902 is 2094493452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1991488 + ... + 1992764.

It is an arithmetic number, because the mean of its divisors is an integer number (110773845).

Almost surely, 2^2543944902 is an apocalyptic number.

2543944902 is an abundant number, since it is smaller than the sum of its proper divisors (2773199658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2543944902 is a wasteful number, since it uses less digits than its factorization.

2543944902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 2543944902 is about 50437.5346542632. The cubic root of 2543944902 is about 1365.1149839404.

The spelling of 2543944902 in words is "two billion, five hundred forty-three million, nine hundred forty-four thousand, nine hundred two".