13671576761 has 2 divisors, whose sum is σ = 13671576762. Its totient is φ = 13671576760.

The previous prime is 13671576733. The next prime is 13671576773. The reversal of 13671576761 is 16767517631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10124183161 + 3547393600 = 100619^2 + 59560^2 .

It is an emirp because it is prime and its reverse (16767517631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13671576761 - 2²² = 13667382457 is a prime.

It is a super-2 number, since 2×13671576761² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13671576791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6835788380 + 6835788381.

It is an arithmetic number, because the mean of its divisors is an integer number (6835788381).

Almost surely, 2^13671576761 is an apocalyptic number.

It is an amenable number.

13671576761 is a deficient number, since it is larger than the sum of its proper divisors (1).

13671576761 is an equidigital number, since it uses as much as digits as its factorization.

13671576761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 50.

The spelling of 13671576761 in words is "thirteen billion, six hundred seventy-one million, five hundred seventy-six thousand, seven hundred sixty-one".