2543782893854 has 8 divisors (see below), whose sum is σ = 3815742661608. Its totient is φ = 1271868673320.

The previous prime is 2543782893853. The next prime is 2543782893863. The reversal of 2543782893854 is 4583982873452.

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

It is a super-2 number, since 2×2543782893854² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543782893853) by changing a digit.

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, 11246837 + ... + 11470784.

It is an arithmetic number, because the mean of its divisors is an integer number (476967832701).

Almost surely, 2^{2543782893854} is an apocalyptic number.

2543782893854 is a deficient number, since it is larger than the sum of its proper divisors (1271959767754).

2543782893854 is a wasteful number, since it uses less digits than its factorization.

2543782893854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22773610.

The product of its digits is 464486400, while the sum is 68.

The spelling of 2543782893854 in words is "two trillion, five hundred forty-three billion, seven hundred eighty-two million, eight hundred ninety-three thousand, eight hundred fifty-four".