2573774729 has 4 divisors (see below), whose sum is σ = 2574201876. Its totient is φ = 2573347584.

The previous prime is 2573774719. The next prime is 2573774747. The reversal of 2573774729 is 9274773752.

2573774729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1765680400 + 808094329 = 42020^2 + 28427^2 .

It is a cyclic number.

It is not a de Polignac number, because 2573774729 - 2²⁰ = 2572726153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2573774719) 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, 204404 + ... + 216629.

It is an arithmetic number, because the mean of its divisors is an integer number (643550469).

Almost surely, 2^2573774729 is an apocalyptic number.

It is an amenable number.

2573774729 is a deficient number, since it is larger than the sum of its proper divisors (427147).

2573774729 is an equidigital number, since it uses as much as digits as its factorization.

2573774729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427146.

The product of its digits is 5186160, while the sum is 53.

The square root of 2573774729 is about 50732.3834350408. The cubic root of 2573774729 is about 1370.4299588199.

The spelling of 2573774729 in words is "two billion, five hundred seventy-three million, seven hundred seventy-four thousand, seven hundred twenty-nine".