2543912992 has 12 divisors (see below), whose sum is σ = 5008328766. Its totient is φ = 1271956480.

The previous prime is 2543912947. The next prime is 2543912993. The reversal of 2543912992 is 2992193452.

It can be written as a sum of positive squares in only one way, i.e., 1911088656 + 632824336 = 43716^2 + 25156^2 .

It is not an unprimeable number, because it can be changed into a prime (2543912993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39748609 + ... + 39748672.

Almost surely, 2^2543912992 is an apocalyptic number.

It is an amenable number.

2543912992 is a deficient number, since it is larger than the sum of its proper divisors (2464415774).

2543912992 is an equidigital number, since it uses as much as digits as its factorization.

2543912992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79497291 (or 79497283 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 2543912992 is about 50437.2183213944. The cubic root of 2543912992 is about 1365.1092761384.

The spelling of 2543912992 in words is "two billion, five hundred forty-three million, nine hundred twelve thousand, nine hundred ninety-two".