2543383646 has 8 divisors (see below), whose sum is σ = 3815297640. Its totient is φ = 1271617768.

The previous prime is 2543383639. The next prime is 2543383649. The reversal of 2543383646 is 6463833452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2543383597 and 2543383606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543383649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30620 + ... + 77616.

It is an arithmetic number, because the mean of its divisors is an integer number (476912205).

Almost surely, 2^2543383646 is an apocalyptic number.

2543383646 is a deficient number, since it is larger than the sum of its proper divisors (1271913994).

2543383646 is a wasteful number, since it uses less digits than its factorization.

2543383646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74058.

The product of its digits is 1244160, while the sum is 44.

The square root of 2543383646 is about 50431.9704750865. The cubic root of 2543383646 is about 1365.0145840552.

The spelling of 2543383646 in words is "two billion, five hundred forty-three million, three hundred eighty-three thousand, six hundred forty-six".