2722666617 has 72 divisors (see below), whose sum is σ = 4581711680. Its totient is φ = 1552478400.

The previous prime is 2722666567. The next prime is 2722666651. The reversal of 2722666617 is 7166662272.

It is not a de Polignac number, because 2722666617 - 2⁷ = 2722666489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722666697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3744708 + ... + 3745434.

Almost surely, 2^2722666617 is an apocalyptic number.

It is an amenable number.

2722666617 is a deficient number, since it is larger than the sum of its proper divisors (1859045063).

2722666617 is a wasteful number, since it uses less digits than its factorization.

2722666617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 941 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 2722666617 is about 52179.1780023411. The cubic root of 2722666617 is about 1396.3624304593.

The spelling of 2722666617 in words is "two billion, seven hundred twenty-two million, six hundred sixty-six thousand, six hundred seventeen".