6923779356 has 48 divisors (see below), whose sum is σ = 17437140000. Its totient is φ = 2125627392.

The previous prime is 6923779337. The next prime is 6923779381. The reversal of 6923779356 is 6539773296.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6923779296 and 6923779305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20620 + ... + 119468.

It is an arithmetic number, because the mean of its divisors is an integer number (363273750).

Almost surely, 2^6923779356 is an apocalyptic number.

It is an amenable number.

6923779356 is an abundant number, since it is smaller than the sum of its proper divisors (10513360644).

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

6923779356 is a wasteful number, since it uses less digits than its factorization.

6923779356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99318 (or 99316 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 57.

The square root of 6923779356 is about 83209.2504232552. The cubic root of 6923779356 is about 1905.9627409607.

The spelling of 6923779356 in words is "six billion, nine hundred twenty-three million, seven hundred seventy-nine thousand, three hundred fifty-six".