2666953287 has 6 divisors (see below), whose sum is σ = 3852265872. Its totient is φ = 1777968852.

The previous prime is 2666953283. The next prime is 2666953301. The reversal of 2666953287 is 7823596662.

It is not a de Polignac number, because 2666953287 - 2² = 2666953283 is a prime.

It is a super-2 number, since 2×2666953287² = 14225279670080208738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666953283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148164063 + ... + 148164080.

It is an arithmetic number, because the mean of its divisors is an integer number (642044312).

Almost surely, 2^2666953287 is an apocalyptic number.

2666953287 is a deficient number, since it is larger than the sum of its proper divisors (1185312585).

2666953287 is a wasteful number, since it uses less digits than its factorization.

2666953287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296328149 (or 296328146 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 2666953287 is about 51642.5530643093. The cubic root of 2666953287 is about 1386.7722297813.

The spelling of 2666953287 in words is "two billion, six hundred sixty-six million, nine hundred fifty-three thousand, two hundred eighty-seven".