69999999999 has 4 divisors (see below), whose sum is σ = 93333333336. Its totient is φ = 46666666664.

The previous prime is 69999999997. The next prime is 70000000033. The reversal of 69999999999 is 99999999996.

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

It is a cyclic number.

It is not a de Polignac number, because 69999999999 - 2¹ = 69999999997 is a prime.

It is a super-9 number, since 9×69999999999⁹ (a number of 99 digits) contains 999999999 as substring.

69999999999 is a modest number, since divided by 999999 gives 69999 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69999999997) 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, 11666666664 + ... + 11666666669.

It is an arithmetic number, because the mean of its divisors is an integer number (23333333334).

Almost surely, 2^69999999999 is an apocalyptic number.

69999999999 is a deficient number, since it is larger than the sum of its proper divisors (23333333337).

69999999999 is a wasteful number, since it uses less digits than its factorization.

69999999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333333336.

The product of its digits is 20920706406, while the sum is 96.

The spelling of 69999999999 in words is "sixty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".