20041905743 has 2 divisors, whose sum is σ = 20041905744. Its totient is φ = 20041905742.

The previous prime is 20041905739. The next prime is 20041905781. The reversal of 20041905743 is 34750914002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20041905743 - 2² = 20041905739 is a prime.

It is a super-2 number, since 2×20041905743² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20041905043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020952871 + 10020952872.

It is an arithmetic number, because the mean of its divisors is an integer number (10020952872).

Almost surely, 2^20041905743 is an apocalyptic number.

20041905743 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041905743 is an equidigital number, since it uses as much as digits as its factorization.

20041905743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20041905743 in words is "twenty billion, forty-one million, nine hundred five thousand, seven hundred forty-three".