4029261881 has 2 divisors, whose sum is σ = 4029261882. Its totient is φ = 4029261880.

The previous prime is 4029261829. The next prime is 4029261911. The reversal of 4029261881 is 1881629204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2664624400 + 1364637481 = 51620^2 + 36941^2 .

It is a cyclic number.

It is not a de Polignac number, because 4029261881 - 2²⁶ = 3962153017 is a prime.

It is a super-2 number, since 2×4029261881² = 32469902611359316322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4029261281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014630940 + 2014630941.

It is an arithmetic number, because the mean of its divisors is an integer number (2014630941).

Almost surely, 2^4029261881 is an apocalyptic number.

It is an amenable number.

4029261881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4029261881 is an equidigital number, since it uses as much as digits as its factorization.

4029261881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 4029261881 is about 63476.4671433438. The cubic root of 4029261881 is about 1591.2625128094.

The spelling of 4029261881 in words is "four billion, twenty-nine million, two hundred sixty-one thousand, eight hundred eighty-one".