6749971608 has 16 divisors (see below), whose sum is σ = 16874929080. Its totient is φ = 2249990528.

The previous prime is 6749971577. The next prime is 6749971609. The reversal of 6749971608 is 8061799476.

It is a super-2 number, since 2×6749971608² = 91124233417612211328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749971609) 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, 140624385 + ... + 140624432.

Almost surely, 2^6749971608 is an apocalyptic number.

It is an amenable number.

6749971608 is an abundant number, since it is smaller than the sum of its proper divisors (10124957472).

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

6749971608 is a wasteful number, since it uses less digits than its factorization.

6749971608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281248826 (or 281248822 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 6749971608 is about 82158.2108373837. The cubic root of 6749971608 is about 1889.8789250846.

The spelling of 6749971608 in words is "six billion, seven hundred forty-nine million, nine hundred seventy-one thousand, six hundred eight".