6349605378 has 16 divisors (see below), whose sum is σ = 12712891680. Its totient is φ = 2114254976.

The previous prime is 6349605347. The next prime is 6349605397. The reversal of 6349605378 is 8735069436.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6349605378.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564000 + ... + 575147.

It is an arithmetic number, because the mean of its divisors is an integer number (794555730).

Almost surely, 2^6349605378 is an apocalyptic number.

6349605378 is an abundant number, since it is smaller than the sum of its proper divisors (6363286302).

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

6349605378 is a wasteful number, since it uses less digits than its factorization.

6349605378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140081.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The square root of 6349605378 is about 79684.4111354285. The cubic root of 6349605378 is about 1851.7495383235.

The spelling of 6349605378 in words is "six billion, three hundred forty-nine million, six hundred five thousand, three hundred seventy-eight".