2543187072 has 64 divisors (see below), whose sum is σ = 6856236000. Its totient is φ = 835067904.

The previous prime is 2543187047. The next prime is 2543187077. The reversal of 2543187072 is 2707813452.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2543187072.

It is not an unprimeable number, because it can be changed into a prime (2543187077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23697 + ... + 75152.

Almost surely, 2^2543187072 is an apocalyptic number.

It is an amenable number.

2543187072 is an abundant number, since it is smaller than the sum of its proper divisors (4313048928).

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

2543187072 is an equidigital number, since it uses as much as digits as its factorization.

2543187072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98933 (or 98921 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2543187072 is about 50430.0215347961. The cubic root of 2543187072 is about 1364.9794165609.

The spelling of 2543187072 in words is "two billion, five hundred forty-three million, one hundred eighty-seven thousand, seventy-two".