6793975818 has 128 divisors (see below), whose sum is σ = 17472000000. Its totient is φ = 1916861760.

The previous prime is 6793975813. The next prime is 6793975849. The reversal of 6793975818 is 8185793976.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6793975813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13614933 + ... + 13615431.

It is an arithmetic number, because the mean of its divisors is an integer number (136500000).

Almost surely, 2^6793975818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6793975818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8736000000).

6793975818 is an abundant number, since it is smaller than the sum of its proper divisors (10678024182).

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

6793975818 is a wasteful number, since it uses less digits than its factorization.

6793975818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 891 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 6793975818 is about 82425.5774502066. The cubic root of 6793975818 is about 1893.9768467007.

The spelling of 6793975818 in words is "six billion, seven hundred ninety-three million, nine hundred seventy-five thousand, eight hundred eighteen".