2019041881 has 2 divisors, whose sum is σ = 2019041882. Its totient is φ = 2019041880.

The previous prime is 2019041803. The next prime is 2019041887. The reversal of 2019041881 is 1881409102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1219057225 + 799984656 = 34915^2 + 28284^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019041881 - 2⁷ = 2019041753 is a prime.

It is a super-2 number, since 2×2019041881² = 8153060234464036322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2019041887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009520940 + 1009520941.

It is an arithmetic number, because the mean of its divisors is an integer number (1009520941).

Almost surely, 2^2019041881 is an apocalyptic number.

It is an amenable number.

2019041881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019041881 is an equidigital number, since it uses as much as digits as its factorization.

2019041881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 2019041881 is about 44933.7499102846. The cubic root of 2019041881 is about 1263.9069710766.

The spelling of 2019041881 in words is "two billion, nineteen million, forty-one thousand, eight hundred eighty-one".