2542664773 has 4 divisors (see below), whose sum is σ = 2773816128. Its totient is φ = 2311513420.

The previous prime is 2542664711. The next prime is 2542664779. The reversal of 2542664773 is 3774662452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542664773 - 2¹³ = 2542656581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542664779) 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, 115575661 + ... + 115575682.

It is an arithmetic number, because the mean of its divisors is an integer number (693454032).

Almost surely, 2^2542664773 is an apocalyptic number.

It is an amenable number.

2542664773 is a deficient number, since it is larger than the sum of its proper divisors (231151355).

2542664773 is a wasteful number, since it uses less digits than its factorization.

2542664773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231151354.

The product of its digits is 1693440, while the sum is 46.

The square root of 2542664773 is about 50424.8428158185. The cubic root of 2542664773 is about 1364.8859673867.

The spelling of 2542664773 in words is "two billion, five hundred forty-two million, six hundred sixty-four thousand, seven hundred seventy-three".