21440476741127 has 2 divisors, whose sum is σ = 21440476741128. Its totient is φ = 21440476741126.

The previous prime is 21440476741093. The next prime is 21440476741219. The reversal of 21440476741127 is 72114767404412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21440476741127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21440475741127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10720238370563 + 10720238370564.

It is an arithmetic number, because the mean of its divisors is an integer number (10720238370564).

Almost surely, 2^{21440476741127} is an apocalyptic number.

21440476741127 is a deficient number, since it is larger than the sum of its proper divisors (1).

21440476741127 is an equidigital number, since it uses as much as digits as its factorization.

21440476741127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2107392, while the sum is 50.

The spelling of 21440476741127 in words is "twenty-one trillion, four hundred forty billion, four hundred seventy-six million, seven hundred forty-one thousand, one hundred twenty-seven".