6749779476 has 24 divisors (see below), whose sum is σ = 17181257184. Its totient is φ = 2045387680.

The previous prime is 6749779453. The next prime is 6749779483.

6749779476 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25567215 + ... + 25567478.

It is an arithmetic number, because the mean of its divisors is an integer number (715885716).

Almost surely, 2^6749779476 is an apocalyptic number.

6749779476 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6749779476 is an abundant number, since it is smaller than the sum of its proper divisors (10431477708).

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

6749779476 is a wasteful number, since it uses less digits than its factorization.

6749779476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51134711 (or 51134709 counting only the distinct ones).

The product of its digits is 112021056, while the sum is 66.

The square root of 6749779476 is about 82157.0415484881. The cubic root of 6749779476 is about 1889.8609936678.

The spelling of 6749779476 in words is "six billion, seven hundred forty-nine million, seven hundred seventy-nine thousand, four hundred seventy-six".