2772383661 has 12 divisors (see below), whose sum is σ = 4133733760. Its totient is φ = 1788634440.

The previous prime is 2772383659. The next prime is 2772383699. The reversal of 2772383661 is 1663832772.

It is not a de Polignac number, because 2772383661 - 2¹ = 2772383659 is a prime.

It is a super-2 number, since 2×2772383661² = 15372222327559525842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772383611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4968151 + ... + 4968708.

Almost surely, 2^2772383661 is an apocalyptic number.

It is an amenable number.

2772383661 is a deficient number, since it is larger than the sum of its proper divisors (1361350099).

2772383661 is a wasteful number, since it uses less digits than its factorization.

2772383661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936896 (or 9936893 counting only the distinct ones).

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

The square root of 2772383661 is about 52653.4297173508. The cubic root of 2772383661 is about 1404.8106043594.

The spelling of 2772383661 in words is "two billion, seven hundred seventy-two million, three hundred eighty-three thousand, six hundred sixty-one".