9881422501799 has 2 divisors, whose sum is σ = 9881422501800. Its totient is φ = 9881422501798.

The previous prime is 9881422501787. The next prime is 9881422501829. The reversal of 9881422501799 is 9971052241889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9881422501799 - 2¹² = 9881422497703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9881422501199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4940711250899 + 4940711250900.

It is an arithmetic number, because the mean of its divisors is an integer number (4940711250900).

Almost surely, 2^{9881422501799} is an apocalyptic number.

9881422501799 is a deficient number, since it is larger than the sum of its proper divisors (1).

9881422501799 is an equidigital number, since it uses as much as digits as its factorization.

9881422501799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 65.

The spelling of 9881422501799 in words is "nine trillion, eight hundred eighty-one billion, four hundred twenty-two million, five hundred one thousand, seven hundred ninety-nine".