13755897889 has 2 divisors, whose sum is σ = 13755897890. Its totient is φ = 13755897888.

The previous prime is 13755897821. The next prime is 13755897899. The reversal of 13755897889 is 98879855731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13620757264 + 135140625 = 116708^2 + 11625^2 .

It is a cyclic number.

It is not a de Polignac number, because 13755897889 - 2²¹ = 13753800737 is a prime.

It is not a weakly prime, because it can be changed into another prime (13755897899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6877948944 + 6877948945.

It is an arithmetic number, because the mean of its divisors is an integer number (6877948945).

Almost surely, 2^13755897889 is an apocalyptic number.

It is an amenable number.

13755897889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13755897889 is an equidigital number, since it uses as much as digits as its factorization.

13755897889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 152409600, while the sum is 70.

The spelling of 13755897889 in words is "thirteen billion, seven hundred fifty-five million, eight hundred ninety-seven thousand, eight hundred eighty-nine".