2542644163 has 8 divisors (see below), whose sum is σ = 2677479120. Its totient is φ = 2407910400.

The previous prime is 2542644133. The next prime is 2542644187. The reversal of 2542644163 is 3614462452.

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

It is a cyclic number.

It is not a de Polignac number, because 2542644163 - 2¹⁷ = 2542513091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542644113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29331 + ... + 77107.

It is an arithmetic number, because the mean of its divisors is an integer number (334684890).

Almost surely, 2^2542644163 is an apocalyptic number.

2542644163 is a deficient number, since it is larger than the sum of its proper divisors (134834957).

2542644163 is a wasteful number, since it uses less digits than its factorization.

2542644163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50597.

The product of its digits is 138240, while the sum is 37.

The square root of 2542644163 is about 50424.6384518521. The cubic root of 2542644163 is about 1364.8822796053.

The spelling of 2542644163 in words is "two billion, five hundred forty-two million, six hundred forty-four thousand, one hundred sixty-three".