2689381267769 has 4 divisors (see below), whose sum is σ = 3073578591744. Its totient is φ = 2305183943796.

The previous prime is 2689381267763. The next prime is 2689381267777. The reversal of 2689381267769 is 9677621839862.

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-2689381267769 is a prime.

It is a super-2 number, since 2×2689381267769² (a number of 26 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 = 2689381267696 and 2689381267705.

It is not an unprimeable number, because it can be changed into a prime (2689381267763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192098661977 + ... + 192098661990.

It is an arithmetic number, because the mean of its divisors is an integer number (768394647936).

Almost surely, 2^{2689381267769} is an apocalyptic number.

It is an amenable number.

2689381267769 is a deficient number, since it is larger than the sum of its proper divisors (384197323975).

2689381267769 is an equidigital number, since it uses as much as digits as its factorization.

2689381267769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384197323974.

The product of its digits is 658409472, while the sum is 74.

The spelling of 2689381267769 in words is "two trillion, six hundred eighty-nine billion, three hundred eighty-one million, two hundred sixty-seven thousand, seven hundred sixty-nine".