6494431386 has 16 divisors (see below), whose sum is σ = 13553596224. Its totient is φ = 2070688224.

The previous prime is 6494431379. The next prime is 6494431403. The reversal of 6494431386 is 6831344946.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23530411 + ... + 23530686.

It is an arithmetic number, because the mean of its divisors is an integer number (847099764).

Almost surely, 2^6494431386 is an apocalyptic number.

6494431386 is an abundant number, since it is smaller than the sum of its proper divisors (7059164838).

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

6494431386 is a wasteful number, since it uses less digits than its factorization.

6494431386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47061125.

The product of its digits is 1492992, while the sum is 48.

The square root of 6494431386 is about 80588.0350052041. The cubic root of 6494431386 is about 1865.7224796328.

The spelling of 6494431386 in words is "six billion, four hundred ninety-four million, four hundred thirty-one thousand, three hundred eighty-six".