6749769820 has 12 divisors (see below), whose sum is σ = 14174516664. Its totient is φ = 2699907920.

The previous prime is 6749769799. The next prime is 6749769823. The reversal of 6749769820 is 289679476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749769823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 168744226 + ... + 168744265.

It is an arithmetic number, because the mean of its divisors is an integer number (1181209722).

Almost surely, 2^6749769820 is an apocalyptic number.

It is an amenable number.

6749769820 is an abundant number, since it is smaller than the sum of its proper divisors (7424746844).

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

6749769820 is a wasteful number, since it uses less digits than its factorization.

6749769820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337488500 (or 337488498 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The square root of 6749769820 is about 82156.9827829625. The cubic root of 6749769820 is about 1889.8600924776.

The spelling of 6749769820 in words is "six billion, seven hundred forty-nine million, seven hundred sixty-nine thousand, eight hundred twenty".