6349261779 has 72 divisors (see below), whose sum is σ = 11413806768. Its totient is φ = 3379138560.

The previous prime is 6349261759. The next prime is 6349261783. The reversal of 6349261779 is 9771629436.

It is a happy number.

6349261779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6349261779 - 2¹¹ = 6349259731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6349261729) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 722844 + ... + 731574.

It is an arithmetic number, because the mean of its divisors is an integer number (158525094).

Almost surely, 2^6349261779 is an apocalyptic number.

6349261779 is a deficient number, since it is larger than the sum of its proper divisors (5064544989).

6349261779 is a wasteful number, since it uses less digits than its factorization.

6349261779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865 (or 8855 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 6349261779 is about 79682.2551073951. The cubic root of 6349261779 is about 1851.7161362075.

The spelling of 6349261779 in words is "six billion, three hundred forty-nine million, two hundred sixty-one thousand, seven hundred seventy-nine".