699999999999 has 8 divisors (see below), whose sum is σ = 934973640240. Its totient is φ = 465846513216.

The previous prime is 699999999989. The next prime is 700000000009. The reversal of 699999999999 is 999999999996.

It is an interprime number because it is at equal distance from previous prime (699999999989) and next prime (700000000009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 699999999999 - 2⁴ = 699999999983 is a prime.

It is a super-9 number, since 9×699999999999⁹ (a number of 108 digits) contains 999999999 as substring.

699999999999 is a modest number, since divided by 999999 gives 699999 as remainder.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 699999999897 and 699999999906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699999999989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205036372 + ... + 205039785.

It is an arithmetic number, because the mean of its divisors is an integer number (116871705030).

Almost surely, 2^699999999999 is an apocalyptic number.

699999999999 is a deficient number, since it is larger than the sum of its proper divisors (234973640241).

699999999999 is a wasteful number, since it uses less digits than its factorization.

699999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410076729.

The product of its digits is 188286357654, while the sum is 105.

The spelling of 699999999999 in words is "six hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".