2666272881 has 8 divisors (see below), whose sum is σ = 3562272864. Its totient is φ = 1773894080.

The previous prime is 2666272867. The next prime is 2666272913. The reversal of 2666272881 is 1882726662.

2666272881 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 2666272881 - 2³¹ = 518789233 is a prime.

It is a super-2 number, since 2×2666272881² = 14218022151912080322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666272881.

It is not an unprimeable number, because it can be changed into a prime (2666272801) 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, 903576 + ... + 906521.

It is an arithmetic number, because the mean of its divisors is an integer number (445284108).

Almost surely, 2^2666272881 is an apocalyptic number.

It is an amenable number.

2666272881 is a deficient number, since it is larger than the sum of its proper divisors (895999983).

2666272881 is a wasteful number, since it uses less digits than its factorization.

2666272881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810591.

The product of its digits is 774144, while the sum is 48.

The square root of 2666272881 is about 51635.9649953402. The cubic root of 2666272881 is about 1386.6542864082.

The spelling of 2666272881 in words is "two billion, six hundred sixty-six million, two hundred seventy-two thousand, eight hundred eighty-one".