13111641769 has 2 divisors, whose sum is σ = 13111641770. Its totient is φ = 13111641768.

The previous prime is 13111641709. The next prime is 13111641821. The reversal of 13111641769 is 96714611131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13061061225 + 50580544 = 114285^2 + 7112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111641769 is a prime.

It is a super-2 number, since 2×13111641769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13111641709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555820884 + 6555820885.

It is an arithmetic number, because the mean of its divisors is an integer number (6555820885).

Almost surely, 2^13111641769 is an apocalyptic number.

It is an amenable number.

13111641769 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111641769 is an equidigital number, since it uses as much as digits as its factorization.

13111641769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The spelling of 13111641769 in words is "thirteen billion, one hundred eleven million, six hundred forty-one thousand, seven hundred sixty-nine".