6481729194 has 8 divisors (see below), whose sum is σ = 12963458400. Its totient is φ = 2160576396.

The previous prime is 6481729193. The next prime is 6481729207. The reversal of 6481729194 is 4919271846.

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

6481729194 is an admirable number.

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 not an unprimeable number, because it can be changed into a prime (6481729193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540144094 + ... + 540144105.

It is an arithmetic number, because the mean of its divisors is an integer number (1620432300).

Almost surely, 2^6481729194 is an apocalyptic number.

6481729194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6481729194 is a wasteful number, since it uses less digits than its factorization.

6481729194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080288204.

The product of its digits is 870912, while the sum is 51.

The square root of 6481729194 is about 80509.1870161412. The cubic root of 6481729194 is about 1864.5053223978.

The spelling of 6481729194 in words is "six billion, four hundred eighty-one million, seven hundred twenty-nine thousand, one hundred ninety-four".