13725865889 has 2 divisors, whose sum is σ = 13725865890. Its totient is φ = 13725865888.

The previous prime is 13725865883. The next prime is 13725865973. The reversal of 13725865889 is 98856852731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13180876864 + 544989025 = 114808^2 + 23345^2 .

It is a cyclic number.

It is not a de Polignac number, because 13725865889 - 2⁴ = 13725865873 is a prime.

It is not a weakly prime, because it can be changed into another prime (13725865883) 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 as a sum of consecutive naturals, namely, 6862932944 + 6862932945.

It is an arithmetic number, because the mean of its divisors is an integer number (6862932945).

Almost surely, 2^13725865889 is an apocalyptic number.

It is an amenable number.

13725865889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13725865889 is an equidigital number, since it uses as much as digits as its factorization.

13725865889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 62.

The spelling of 13725865889 in words is "thirteen billion, seven hundred twenty-five million, eight hundred sixty-five thousand, eight hundred eighty-nine".