4022868681 has 24 divisors (see below), whose sum is σ = 6322326920. Its totient is φ = 2450082816.

The previous prime is 4022868679. The next prime is 4022868701. The reversal of 4022868681 is 1868682204.

It can be written as a sum of positive squares in 4 ways, for example, as 59536656 + 3963332025 = 7716^2 + 62955^2 .

It is not a de Polignac number, because 4022868681 - 2¹ = 4022868679 is a prime.

It is a super-2 number, since 2×4022868681² = 32366944849141359522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4022868181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165886 + ... + 188583.

Almost surely, 2^4022868681 is an apocalyptic number.

It is an amenable number.

4022868681 is a deficient number, since it is larger than the sum of its proper divisors (2299458239).

4022868681 is a wasteful number, since it uses less digits than its factorization.

4022868681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354585 (or 354582 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 4022868681 is about 63426.0883312222. The cubic root of 4022868681 is about 1590.4204524720.

The spelling of 4022868681 in words is "four billion, twenty-two million, eight hundred sixty-eight thousand, six hundred eighty-one".