6734640723 has 8 divisors (see below), whose sum is σ = 8979945936. Its totient is φ = 4489548000.

The previous prime is 6734640713. The next prime is 6734640791. The reversal of 6734640723 is 3270464376.

6734640723 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 not a de Polignac number, because 6734640723 - 2⁸ = 6734640467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6734640713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48733 + ... + 125873.

It is an arithmetic number, because the mean of its divisors is an integer number (1122493242).

Almost surely, 2^6734640723 is an apocalyptic number.

6734640723 is a deficient number, since it is larger than the sum of its proper divisors (2245305213).

6734640723 is a wasteful number, since it uses less digits than its factorization.

6734640723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106245.

The product of its (nonzero) digits is 508032, while the sum is 42.

The square root of 6734640723 is about 82064.8568085024. The cubic root of 6734640723 is about 1888.4470435276.

The spelling of 6734640723 in words is "six billion, seven hundred thirty-four million, six hundred forty thousand, seven hundred twenty-three".