69375065691 has 4 divisors (see below), whose sum is σ = 92500087592. Its totient is φ = 46250043792.

The previous prime is 69375065657. The next prime is 69375065701. The reversal of 69375065691 is 19656057396.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-69375065691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69375065491) 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, 11562510946 + ... + 11562510951.

It is an arithmetic number, because the mean of its divisors is an integer number (23125021898).

Almost surely, 2^69375065691 is an apocalyptic number.

69375065691 is a deficient number, since it is larger than the sum of its proper divisors (23125021901).

69375065691 is a wasteful number, since it uses less digits than its factorization.

69375065691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23125021900.

The product of its (nonzero) digits is 9185400, while the sum is 57.

The spelling of 69375065691 in words is "sixty-nine billion, three hundred seventy-five million, sixty-five thousand, six hundred ninety-one".