2543397748 has 12 divisors (see below), whose sum is σ = 4462692640. Its totient is φ = 1268342712.

The previous prime is 2543397737. The next prime is 2543397751. The reversal of 2543397748 is 8477933452.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2543397695 and 2543397704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837336 + ... + 840367.

Almost surely, 2^2543397748 is an apocalyptic number.

It is an amenable number.

2543397748 is a deficient number, since it is larger than the sum of its proper divisors (1919294892).

2543397748 is a wasteful number, since it uses less digits than its factorization.

2543397748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678086 (or 1678084 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The square root of 2543397748 is about 50432.1102869987. The cubic root of 2543397748 is about 1365.0171068625.

The spelling of 2543397748 in words is "two billion, five hundred forty-three million, three hundred ninety-seven thousand, seven hundred forty-eight".