2681305858266 has 32 divisors (see below), whose sum is σ = 6128762305920. Its totient is φ = 766079487936.

The previous prime is 2681305858249. The next prime is 2681305858277. The reversal of 2681305858266 is 6628585031862.

It is a happy number.

It is a super-2 number, since 2×2681305858266² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4693860 + ... + 5234016.

It is an arithmetic number, because the mean of its divisors is an integer number (191523822060).

Almost surely, 2^{2681305858266} is an apocalyptic number.

2681305858266 is an abundant number, since it is smaller than the sum of its proper divisors (3447456447654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2681305858266 is a wasteful number, since it uses less digits than its factorization.

2681305858266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658358.

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 2681305858266 in words is "two trillion, six hundred eighty-one billion, three hundred five million, eight hundred fifty-eight thousand, two hundred sixty-six".