13106372187761 has 4 divisors (see below), whose sum is σ = 13115862683124. Its totient is φ = 13096881692400.

The previous prime is 13106372187749. The next prime is 13106372187781. The reversal of 13106372187761 is 16778127360131.

13106372187761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4639203362161 + 8467168825600 = 2153881^2 + 2909840^2 .

It is a cyclic number.

It is not a de Polignac number, because 13106372187761 - 2⁶ = 13106372187697 is a prime.

It is a super-2 number, since 2×13106372187761² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13106372187721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4745245610 + ... + 4745248371.

It is an arithmetic number, because the mean of its divisors is an integer number (3278965670781).

Almost surely, 2^{13106372187761} is an apocalyptic number.

It is an amenable number.

13106372187761 is a deficient number, since it is larger than the sum of its proper divisors (9490495363).

13106372187761 is an equidigital number, since it uses as much as digits as its factorization.

13106372187761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490495362.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 13106372187761 in words is "thirteen trillion, one hundred six billion, three hundred seventy-two million, one hundred eighty-seven thousand, seven hundred sixty-one".