6725709438 has 32 divisors (see below), whose sum is σ = 15583646976. Its totient is φ = 1895306688.

The previous prime is 6725709437. The next prime is 6725709443. The reversal of 6725709438 is 8349075276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725709437) 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 15 ways as a sum of consecutive naturals, for example, 1093756 + ... + 1099887.

It is an arithmetic number, because the mean of its divisors is an integer number (486988968).

Almost surely, 2^6725709438 is an apocalyptic number.

6725709438 is an abundant number, since it is smaller than the sum of its proper divisors (8857937538).

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

6725709438 is a wasteful number, since it uses less digits than its factorization.

6725709438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193728.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 6725709438 is about 82010.4227400396. The cubic root of 6725709438 is about 1887.6118730118.

The spelling of 6725709438 in words is "six billion, seven hundred twenty-five million, seven hundred nine thousand, four hundred thirty-eight".