2547178842 has 16 divisors (see below), whose sum is σ = 5486231520. Its totient is φ = 783747312.

The previous prime is 2547178813. The next prime is 2547178859. The reversal of 2547178842 is 2488717452.

It is a junction number, because it is equal to n+sod(n) for n = 2547178791 and 2547178800.

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, 16327992 + ... + 16328147.

It is an arithmetic number, because the mean of its divisors is an integer number (342889470).

Almost surely, 2^2547178842 is an apocalyptic number.

2547178842 is an abundant number, since it is smaller than the sum of its proper divisors (2939052678).

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

2547178842 is a wasteful number, since it uses less digits than its factorization.

2547178842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32656157.

The product of its digits is 1003520, while the sum is 48.

The square root of 2547178842 is about 50469.5833349157. The cubic root of 2547178842 is about 1365.6931975340.

The spelling of 2547178842 in words is "two billion, five hundred forty-seven million, one hundred seventy-eight thousand, eight hundred forty-two".