6899139704592 has 60 divisors (see below), whose sum is σ = 19778936100924. Its totient is φ = 2243622666240.

The previous prime is 6899139704579. The next prime is 6899139704663. The reversal of 6899139704592 is 2954079319986.

6899139704592 is a `hidden beast` number, since 6 + 8 + 99 + 13 + 9 + 70 + 459 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1272167433216 + 5626972271376 = 1127904^2 + 2372124^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 6899139704592.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584270833 + ... + 584282640.

It is a 1-persistent number, because it is pandigital, but 2⋅6899139704592 = 13798279409184 is not.

Almost surely, 2^{6899139704592} is an apocalyptic number.

It is an amenable number.

6899139704592 is an abundant number, since it is smaller than the sum of its proper divisors (12879796396332).

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

6899139704592 is a wasteful number, since it uses less digits than its factorization.

6899139704592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168553528 (or 1168553519 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 72.

The spelling of 6899139704592 in words is "six trillion, eight hundred ninety-nine billion, one hundred thirty-nine million, seven hundred four thousand, five hundred ninety-two".