6749523799 has 4 divisors (see below), whose sum is σ = 6755089336. Its totient is φ = 6743958264.

The previous prime is 6749523797. The next prime is 6749523817. The reversal of 6749523799 is 9973259476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6749523799 - 2¹ = 6749523797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749523793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780949 + ... + 2783374.

It is an arithmetic number, because the mean of its divisors is an integer number (1688772334).

Almost surely, 2^6749523799 is an apocalyptic number.

6749523799 is a deficient number, since it is larger than the sum of its proper divisors (5565537).

6749523799 is a wasteful number, since it uses less digits than its factorization.

6749523799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565536.

The product of its digits is 25719120, while the sum is 61.

The square root of 6749523799 is about 82155.4855076641. The cubic root of 6749523799 is about 1889.8371311554.

The spelling of 6749523799 in words is "six billion, seven hundred forty-nine million, five hundred twenty-three thousand, seven hundred ninety-nine".