2572661717 has 8 divisors (see below), whose sum is σ = 2666118240. Its totient is φ = 2479521520.

The previous prime is 2572661699. The next prime is 2572661719. The reversal of 2572661717 is 7171662752.

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 2572661717 - 2⁶ = 2572661653 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 (2572661719) by changing a digit.

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, 62459 + ... + 95112.

It is an arithmetic number, because the mean of its divisors is an integer number (333264780).

Almost surely, 2^2572661717 is an apocalyptic number.

It is an amenable number.

2572661717 is a deficient number, since it is larger than the sum of its proper divisors (93456523).

2572661717 is a wasteful number, since it uses less digits than its factorization.

2572661717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158163.

The product of its digits is 246960, while the sum is 44.

The square root of 2572661717 is about 50721.4128056386. The cubic root of 2572661717 is about 1370.2323858551.

The spelling of 2572661717 in words is "two billion, five hundred seventy-two million, six hundred sixty-one thousand, seven hundred seventeen".