4023761681 has 2 divisors, whose sum is σ = 4023761682. Its totient is φ = 4023761680.

The previous prime is 4023761633. The next prime is 4023761683. The reversal of 4023761681 is 1861673204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3983629456 + 40132225 = 63116^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 4023761681 - 2¹⁸ = 4023499537 is a prime.

It is a super-2 number, since 2×4023761681² = 32381316130967891522, which contains 22 as substring.

Together with 4023761683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4023761683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011880840 + 2011880841.

It is an arithmetic number, because the mean of its divisors is an integer number (2011880841).

Almost surely, 2^4023761681 is an apocalyptic number.

It is an amenable number.

4023761681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023761681 is an equidigital number, since it uses as much as digits as its factorization.

4023761681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 4023761681 is about 63433.1276306001. The cubic root of 4023761681 is about 1590.5381247519.

The spelling of 4023761681 in words is "four billion, twenty-three million, seven hundred sixty-one thousand, six hundred eighty-one".