699749395856 has 40 divisors (see below), whose sum is σ = 1640588924160. Its totient is φ = 282251856384.

The previous prime is 699749395847. The next prime is 699749395861. The reversal of 699749395856 is 658593947996.

It is a super-3 number, since 3×699749395856³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183755816 + ... + 183759623.

It is an arithmetic number, because the mean of its divisors is an integer number (41014723104).

Almost surely, 2^699749395856 is an apocalyptic number.

It is an amenable number.

699749395856 is an abundant number, since it is smaller than the sum of its proper divisors (940839528304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

699749395856 is a wasteful number, since it uses less digits than its factorization.

699749395856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367515471 (or 367515465 counting only the distinct ones).

The product of its digits is 3968092800, while the sum is 80.

The spelling of 699749395856 in words is "six hundred ninety-nine billion, seven hundred forty-nine million, three hundred ninety-five thousand, eight hundred fifty-six".