2271858979 has 4 divisors (see below), whose sum is σ = 2446617376. Its totient is φ = 2097100584.

The previous prime is 2271858977. The next prime is 2271858991. The reversal of 2271858979 is 9798581722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9798581722 = 2 ⋅4899290861.

It is a cyclic number.

It is not a de Polignac number, because 2271858979 - 2¹ = 2271858977 is a prime.

It is a super-2 number, since 2×2271858979² = 10322686440925844882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271858973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87379179 + ... + 87379204.

It is an arithmetic number, because the mean of its divisors is an integer number (611654344).

Almost surely, 2^2271858979 is an apocalyptic number.

2271858979 is a deficient number, since it is larger than the sum of its proper divisors (174758397).

2271858979 is a wasteful number, since it uses less digits than its factorization.

2271858979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174758396.

The product of its digits is 5080320, while the sum is 58.

The square root of 2271858979 is about 47664.0218508678. The cubic root of 2271858979 is about 1314.6004904723.

The spelling of 2271858979 in words is "two billion, two hundred seventy-one million, eight hundred fifty-eight thousand, nine hundred seventy-nine".