2546243878 has 8 divisors (see below), whose sum is σ = 3831807672. Its totient is φ = 1268974656.

The previous prime is 2546243873. The next prime is 2546243879. The reversal of 2546243878 is 8783426452.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546243873) 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, 2072875 + ... + 2074102.

It is an arithmetic number, because the mean of its divisors is an integer number (478975959).

Almost surely, 2^2546243878 is an apocalyptic number.

2546243878 is a deficient number, since it is larger than the sum of its proper divisors (1285563794).

2546243878 is a wasteful number, since it uses less digits than its factorization.

2546243878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147286.

The product of its digits is 2580480, while the sum is 49.

The square root of 2546243878 is about 50460.3198364814. The cubic root of 2546243878 is about 1365.5260805895.

The spelling of 2546243878 in words is "two billion, five hundred forty-six million, two hundred forty-three thousand, eight hundred seventy-eight".