11944669801 has 2 divisors, whose sum is σ = 11944669802. Its totient is φ = 11944669800.

The previous prime is 11944669777. The next prime is 11944669873. The reversal of 11944669801 is 10896644911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10717218576 + 1227451225 = 103524^2 + 35035^2 .

It is a cyclic number.

It is not a de Polignac number, because 11944669801 - 2⁷ = 11944669673 is a prime.

It is not a weakly prime, because it can be changed into another prime (11944669001) 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, 5972334900 + 5972334901.

It is an arithmetic number, because the mean of its divisors is an integer number (5972334901).

Almost surely, 2^11944669801 is an apocalyptic number.

It is an amenable number.

11944669801 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944669801 is an equidigital number, since it uses as much as digits as its factorization.

11944669801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 11944669801 in words is "eleven billion, nine hundred forty-four million, six hundred sixty-nine thousand, eight hundred one".