2666625279 has 8 divisors (see below), whose sum is σ = 3555958320. Its totient is φ = 1777521216.

The previous prime is 2666625271. The next prime is 2666625373. The reversal of 2666625279 is 9725266662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2666625279 - 2³ = 2666625271 is a prime.

It is a super-2 number, since 2×2666625279² = 14221780757203655682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666625271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27924 + ... + 78185.

It is an arithmetic number, because the mean of its divisors is an integer number (444494790).

Almost surely, 2^2666625279 is an apocalyptic number.

2666625279 is a deficient number, since it is larger than the sum of its proper divisors (889333041).

2666625279 is a wasteful number, since it uses less digits than its factorization.

2666625279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114489.

The product of its digits is 3265920, while the sum is 51.

The square root of 2666625279 is about 51639.3772135180. The cubic root of 2666625279 is about 1386.7153745128.

The spelling of 2666625279 in words is "two billion, six hundred sixty-six million, six hundred twenty-five thousand, two hundred seventy-nine".