6764509749 has 8 divisors (see below), whose sum is σ = 9088196832. Its totient is φ = 4475247920.

The previous prime is 6764509747. The next prime is 6764509769. The reversal of 6764509749 is 9479054676.

6764509749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6764509749 - 2¹ = 6764509747 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6764509747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8605854 + ... + 8606639.

It is an arithmetic number, because the mean of its divisors is an integer number (1136024604).

Almost surely, 2^6764509749 is an apocalyptic number.

It is an amenable number.

6764509749 is a deficient number, since it is larger than the sum of its proper divisors (2323687083).

6764509749 is a wasteful number, since it uses less digits than its factorization.

6764509749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212627.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The square root of 6764509749 is about 82246.6397429099. The cubic root of 6764509749 is about 1891.2347640879.

The spelling of 6764509749 in words is "six billion, seven hundred sixty-four million, five hundred nine thousand, seven hundred forty-nine".