13275066761 has 4 divisors (see below), whose sum is σ = 14481891024. Its totient is φ = 12068242500.

The previous prime is 13275066751. The next prime is 13275066773. The reversal of 13275066761 is 16766057231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13275066761 is a prime.

It is a super-2 number, since 2×13275066761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13275066731) 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, 603412115 + ... + 603412136.

It is an arithmetic number, because the mean of its divisors is an integer number (3620472756).

Almost surely, 2^13275066761 is an apocalyptic number.

13275066761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13275066761 is a deficient number, since it is larger than the sum of its proper divisors (1206824263).

13275066761 is a wasteful number, since it uses less digits than its factorization.

13275066761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206824262.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 13275066761 in words is "thirteen billion, two hundred seventy-five million, sixty-six thousand, seven hundred sixty-one".