2547742756 has 48 divisors (see below), whose sum is σ = 5061692160. Its totient is φ = 1112348160.

The previous prime is 2547742751. The next prime is 2547742759. The reversal of 2547742756 is 6572477452.

It is not an unprimeable number, because it can be changed into a prime (2547742751) 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 15 ways as a sum of consecutive naturals, for example, 868965 + ... + 871891.

It is an arithmetic number, because the mean of its divisors is an integer number (105451920).

Almost surely, 2^2547742756 is an apocalyptic number.

2547742756 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2547742756 is a deficient number, since it is larger than the sum of its proper divisors (2513949404).

2547742756 is a wasteful number, since it uses less digits than its factorization.

2547742756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844 (or 3842 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 49.

The square root of 2547742756 is about 50475.1696975850. The cubic root of 2547742756 is about 1365.7939726446.

The spelling of 2547742756 in words is "two billion, five hundred forty-seven million, seven hundred forty-two thousand, seven hundred fifty-six".