6801691908 has 96 divisors (see below), whose sum is σ = 18409362048. Its totient is φ = 1931673600.

The previous prime is 6801691889. The next prime is 6801691921. The reversal of 6801691908 is 8091961086.

It is a super-2 number, since 2×6801691908² = 92526025622705360928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534516 + ... + 547092.

It is an arithmetic number, because the mean of its divisors is an integer number (191764188).

Almost surely, 2^6801691908 is an apocalyptic number.

6801691908 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6801691908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9204681024).

6801691908 is an abundant number, since it is smaller than the sum of its proper divisors (11607670140).

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

6801691908 is a wasteful number, since it uses less digits than its factorization.

6801691908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12853 (or 12851 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 6801691908 is about 82472.3705734230. The cubic root of 6801691908 is about 1894.6935878821.

The spelling of 6801691908 in words is "six billion, eight hundred one million, six hundred ninety-one thousand, nine hundred eight".