6738491279 has 8 divisors (see below), whose sum is σ = 7257474672. Its totient is φ = 6219599040.

The previous prime is 6738491267. The next prime is 6738491293. The reversal of 6738491279 is 9721948376.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6738491279 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 (6738491479) 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, 273692 + ... + 297294.

It is an arithmetic number, because the mean of its divisors is an integer number (907184334).

Almost surely, 2^6738491279 is an apocalyptic number.

6738491279 is a deficient number, since it is larger than the sum of its proper divisors (518983393).

6738491279 is a wasteful number, since it uses less digits than its factorization.

6738491279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45577.

The product of its digits is 4572288, while the sum is 56.

The square root of 6738491279 is about 82088.3139003354. The cubic root of 6738491279 is about 1888.8068838410.

The spelling of 6738491279 in words is "six billion, seven hundred thirty-eight million, four hundred ninety-one thousand, two hundred seventy-nine".