1327679638069 has 4 divisors (see below), whose sum is σ = 1327686728896. Its totient is φ = 1327672547244.

The previous prime is 1327679638027. The next prime is 1327679638073. The reversal of 1327679638069 is 9608369767231.

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 not a de Polignac number, because 1327679638069 - 2⁷ = 1327679637941 is a prime.

It is a super-2 number, since 2×1327679638069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1327679637995 and 1327679638013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327679638099) 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, 3256719 + ... + 3641644.

It is an arithmetic number, because the mean of its divisors is an integer number (331921682224).

Almost surely, 2^{1327679638069} is an apocalyptic number.

It is an amenable number.

1327679638069 is a deficient number, since it is larger than the sum of its proper divisors (7090827).

1327679638069 is an equidigital number, since it uses as much as digits as its factorization.

1327679638069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090826.

The product of its (nonzero) digits is 123451776, while the sum is 67.

The spelling of 1327679638069 in words is "one trillion, three hundred twenty-seven billion, six hundred seventy-nine million, six hundred thirty-eight thousand, sixty-nine".