69935909889 has 4 divisors (see below), whose sum is σ = 93247879856. Its totient is φ = 46623939924.

The previous prime is 69935909861. The next prime is 69935909959. The reversal of 69935909889 is 98890953996.

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 not a de Polignac number, because 69935909889 - 2⁸ = 69935909633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69935909889.

It is not an unprimeable number, because it can be changed into a prime (69935909839) 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, 11655984979 + ... + 11655984984.

It is an arithmetic number, because the mean of its divisors is an integer number (23311969964).

Almost surely, 2^69935909889 is an apocalyptic number.

It is an amenable number.

69935909889 is a deficient number, since it is larger than the sum of its proper divisors (23311969967).

69935909889 is a wasteful number, since it uses less digits than its factorization.

69935909889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23311969966.

The product of its (nonzero) digits is 340122240, while the sum is 75.

The spelling of 69935909889 in words is "sixty-nine billion, nine hundred thirty-five million, nine hundred nine thousand, eight hundred eighty-nine".