6769879820 has 216 divisors, whose sum is σ = 16773819552. Its totient is φ = 2291520000.

The previous prime is 6769879807. The next prime is 6769879841. The reversal of 6769879820 is 289789676.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 95350385 + ... + 95350455.

It is an arithmetic number, because the mean of its divisors is an integer number (77656572).

Almost surely, 2^6769879820 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 6769879820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8386909776).

6769879820 is an abundant number, since it is smaller than the sum of its proper divisors (10003939732).

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

6769879820 is a wasteful number, since it uses less digits than its factorization.

6769879820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 62.

The square root of 6769879820 is about 82279.2794086093. The cubic root of 6769879820 is about 1891.7350900059.

The spelling of 6769879820 in words is "six billion, seven hundred sixty-nine million, eight hundred seventy-nine thousand, eight hundred twenty".