20411943047 has 12 divisors (see below), whose sum is σ = 20613355776. Its totient is φ = 20212446240.

The previous prime is 20411943043. The next prime is 20411943077. The reversal of 20411943047 is 74034911402.

It is a happy number.

It is not a de Polignac number, because 20411943047 - 2² = 20411943043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20411942998 and 20411943016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411943043) 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 in 11 ways as a sum of consecutive naturals, for example, 12273338 + ... + 12275000.

It is an arithmetic number, because the mean of its divisors is an integer number (1717779648).

Almost surely, 2^20411943047 is an apocalyptic number.

20411943047 is a deficient number, since it is larger than the sum of its proper divisors (201412729).

20411943047 is an equidigital number, since it uses as much as digits as its factorization.

20411943047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20411943047 in words is "twenty billion, four hundred eleven million, nine hundred forty-three thousand, forty-seven".