6749523860 has 24 divisors (see below), whose sum is σ = 14175975240. Its totient is φ = 2699433344.

The previous prime is 6749523841. The next prime is 6749523899. The reversal of 6749523860 is 683259476.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1369888144 + 5379635716 = 37012^2 + 73346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6749523799 and 6749523808.

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, 157646 + ... + 195834.

It is an arithmetic number, because the mean of its divisors is an integer number (590665635).

Almost surely, 2^6749523860 is an apocalyptic number.

It is an amenable number.

6749523860 is an abundant number, since it is smaller than the sum of its proper divisors (7426451380).

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

6749523860 is a wasteful number, since it uses less digits than its factorization.

6749523860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47035 (or 47033 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 6749523860 is about 82155.4858789113. The cubic root of 6749523860 is about 1889.8371368486.

The spelling of 6749523860 in words is "six billion, seven hundred forty-nine million, five hundred twenty-three thousand, eight hundred sixty".