2543762478 has 16 divisors (see below), whose sum is σ = 5101941456. Its totient is φ = 845518080.

The previous prime is 2543762461. The next prime is 2543762483. The reversal of 2543762478 is 8742673452.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598393 + ... + 602628.

It is an arithmetic number, because the mean of its divisors is an integer number (318871341).

Almost surely, 2^2543762478 is an apocalyptic number.

2543762478 is an abundant number, since it is smaller than the sum of its proper divisors (2558178978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2543762478 is a wasteful number, since it uses less digits than its factorization.

2543762478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201379.

The product of its digits is 2257920, while the sum is 48.

The square root of 2543762478 is about 50435.7262067277. The cubic root of 2543762478 is about 1365.0823527714.

The spelling of 2543762478 in words is "two billion, five hundred forty-three million, seven hundred sixty-two thousand, four hundred seventy-eight".