699725739868 has 6 divisors (see below), whose sum is σ = 1224520044776. Its totient is φ = 349862869932.

The previous prime is 699725739827. The next prime is 699725739887. The reversal of 699725739868 is 868937527996.

It is a super-2 number, since 2×699725739868² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87465717480 + ... + 87465717487.

Almost surely, 2^699725739868 is an apocalyptic number.

It is an amenable number.

699725739868 is a deficient number, since it is larger than the sum of its proper divisors (524794304908).

699725739868 is a wasteful number, since it uses less digits than its factorization.

699725739868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174931434971 (or 174931434969 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 79.

The spelling of 699725739868 in words is "six hundred ninety-nine billion, seven hundred twenty-five million, seven hundred thirty-nine thousand, eight hundred sixty-eight".