6178994646 has 16 divisors (see below), whose sum is σ = 13481443008. Its totient is φ = 1872422600.

The previous prime is 6178994621. The next prime is 6178994651. The reversal of 6178994646 is 6464998716.

It is a self number, because there is not a number n which added to its sum of digits gives 6178994646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46810500 + ... + 46810631.

It is an arithmetic number, because the mean of its divisors is an integer number (842590188).

Almost surely, 2^6178994646 is an apocalyptic number.

6178994646 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6178994646 is an abundant number, since it is smaller than the sum of its proper divisors (7302448362).

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

6178994646 is a wasteful number, since it uses less digits than its factorization.

6178994646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93621147.

The product of its digits is 15676416, while the sum is 60.

The square root of 6178994646 is about 78606.5814420141. The cubic root of 6178994646 is about 1835.0135393379.

The spelling of 6178994646 in words is "six billion, one hundred seventy-eight million, nine hundred ninety-four thousand, six hundred forty-six".