6890140750069 has 4 divisors (see below), whose sum is σ = 6890167271520. Its totient is φ = 6890114228620.

The previous prime is 6890140750021. The next prime is 6890140750109. The reversal of 6890140750069 is 9600570410986.

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 6890140750069 - 2¹¹ = 6890140748021 is a prime.

It is a super-2 number, since 2×6890140750069² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890140750369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12867139 + ... + 13391920.

It is an arithmetic number, because the mean of its divisors is an integer number (1722541817880).

Almost surely, 2^{6890140750069} is an apocalyptic number.

It is an amenable number.

6890140750069 is a deficient number, since it is larger than the sum of its proper divisors (26521451).

6890140750069 is a wasteful number, since it uses less digits than its factorization.

6890140750069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26521450.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 6890140750069 in words is "six trillion, eight hundred ninety billion, one hundred forty million, seven hundred fifty thousand, sixty-nine".