13881106573 has 2 divisors, whose sum is σ = 13881106574. Its totient is φ = 13881106572.

The previous prime is 13881106559. The next prime is 13881106601. The reversal of 13881106573 is 37560118831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7490383209 + 6390723364 = 86547^2 + 79942^2 .

It is a cyclic number.

It is not a de Polignac number, because 13881106573 - 2⁵ = 13881106541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13881106973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6940553286 + 6940553287.

It is an arithmetic number, because the mean of its divisors is an integer number (6940553287).

Almost surely, 2^13881106573 is an apocalyptic number.

It is an amenable number.

13881106573 is a deficient number, since it is larger than the sum of its proper divisors (1).

13881106573 is an equidigital number, since it uses as much as digits as its factorization.

13881106573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 13881106573 in words is "thirteen billion, eight hundred eighty-one million, one hundred six thousand, five hundred seventy-three".