2027822991 has 16 divisors (see below), whose sum is σ = 2828722176. Its totient is φ = 1289711456.

The previous prime is 2027822989. The next prime is 2027823001. The reversal of 2027822991 is 1992287202.

It is a cyclic number.

It is not a de Polignac number, because 2027822991 - 2¹ = 2027822989 is a prime.

It is a super-2 number, since 2×2027822991² = 8224132165656372162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027822911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11940 + ... + 64793.

It is an arithmetic number, because the mean of its divisors is an integer number (176795136).

Almost surely, 2^2027822991 is an apocalyptic number.

2027822991 is a deficient number, since it is larger than the sum of its proper divisors (800899185).

2027822991 is a wasteful number, since it uses less digits than its factorization.

2027822991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77142.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 2027822991 is about 45031.3556424854. The cubic root of 2027822991 is about 1265.7366269036.

The spelling of 2027822991 in words is "two billion, twenty-seven million, eight hundred twenty-two thousand, nine hundred ninety-one".