6899878752 has 96 divisors (see below), whose sum is σ = 19523669760. Its totient is φ = 2121054720.

The previous prime is 6899878691. The next prime is 6899878759. The reversal of 6899878752 is 2578789986.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6899878759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1883899 + ... + 1887557.

It is an arithmetic number, because the mean of its divisors is an integer number (203371560).

Almost surely, 2^6899878752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6899878752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9761834880).

6899878752 is an abundant number, since it is smaller than the sum of its proper divisors (12623791008).

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

6899878752 is a wasteful number, since it uses less digits than its factorization.

6899878752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 5188 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 69.

The square root of 6899878752 is about 83065.5087987788. The cubic root of 6899878752 is about 1903.7671107237.

The spelling of 6899878752 in words is "six billion, eight hundred ninety-nine million, eight hundred seventy-eight thousand, seven hundred fifty-two".