6947747776 has 56 divisors (see below), whose sum is σ = 14444366336. Its totient is φ = 3311573760.

The previous prime is 6947747773. The next prime is 6947747791. The reversal of 6947747776 is 6777477496.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6947747773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 106795 + ... + 159061.

Almost surely, 2^6947747776 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 6947747776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7222183168).

6947747776 is an abundant number, since it is smaller than the sum of its proper divisors (7496618560).

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

6947747776 is a wasteful number, since it uses less digits than its factorization.

6947747776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52377 (or 52367 counting only the distinct ones).

The product of its digits is 87127488, while the sum is 64.

The square root of 6947747776 is about 83353.1509662352. The cubic root of 6947747776 is about 1908.1595326233.

The spelling of 6947747776 in words is "six billion, nine hundred forty-seven million, seven hundred forty-seven thousand, seven hundred seventy-six".