2543973880 has 64 divisors (see below), whose sum is σ = 6826083840. Its totient is φ = 834294912.

The previous prime is 2543973851. The next prime is 2543973893. The reversal of 2543973880 is 883793452.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191074 + ... + 203953.

It is an arithmetic number, because the mean of its divisors is an integer number (106657560).

Almost surely, 2^2543973880 is an apocalyptic number.

2543973880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543973880 is an abundant number, since it is smaller than the sum of its proper divisors (4282109960).

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

2543973880 is a wasteful number, since it uses less digits than its factorization.

2543973880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395068 (or 395064 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 2543973880 is about 50437.8219196666. The cubic root of 2543973880 is about 1365.1201672487.

The spelling of 2543973880 in words is "two billion, five hundred forty-three million, nine hundred seventy-three thousand, eight hundred eighty".