6747421679 has 8 divisors (see below), whose sum is σ = 6961757760. Its totient is φ = 6536308896.

The previous prime is 6747421649. The next prime is 6747421693. The reversal of 6747421679 is 9761247476.

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 6747421679 - 2²⁸ = 6478986223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 6747421679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6747421649) 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, 801572 + ... + 809945.

It is an arithmetic number, because the mean of its divisors is an integer number (870219720).

Almost surely, 2^6747421679 is an apocalyptic number.

6747421679 is a deficient number, since it is larger than the sum of its proper divisors (214336081).

6747421679 is a wasteful number, since it uses less digits than its factorization.

6747421679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611649.

The product of its digits is 3556224, while the sum is 53.

The square root of 6747421679 is about 82142.6909651735. The cubic root of 6747421679 is about 1889.6409159830.

The spelling of 6747421679 in words is "six billion, seven hundred forty-seven million, four hundred twenty-one thousand, six hundred seventy-nine".