2272856681 has 8 divisors (see below), whose sum is σ = 2305393728. Its totient is φ = 2240550000.

The previous prime is 2272856653. The next prime is 2272856687. The reversal of 2272856681 is 1866582722.

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 2272856681 - 2¹⁸ = 2272594537 is a prime.

It is a super-2 number, since 2×2272856681² = 10331754984732671522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272856687) 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, 37670 + ... + 77231.

It is an arithmetic number, because the mean of its divisors is an integer number (288174216).

Almost surely, 2^2272856681 is an apocalyptic number.

It is an amenable number.

2272856681 is a deficient number, since it is larger than the sum of its proper divisors (32537047).

2272856681 is a wasteful number, since it uses less digits than its factorization.

2272856681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115183.

The product of its digits is 645120, while the sum is 47.

The square root of 2272856681 is about 47674.4866883745. The cubic root of 2272856681 is about 1314.7929008289.

The spelling of 2272856681 in words is "two billion, two hundred seventy-two million, eight hundred fifty-six thousand, six hundred eighty-one".