6431009782 has 16 divisors (see below), whose sum is σ = 9983509200. Its totient is φ = 3103270240.

The previous prime is 6431009719. The next prime is 6431009797. The reversal of 6431009782 is 2879001346.

It is a congruent number.

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, 116844 + ... + 162832.

It is an arithmetic number, because the mean of its divisors is an integer number (623969325).

Almost surely, 2^6431009782 is an apocalyptic number.

6431009782 is a deficient number, since it is larger than the sum of its proper divisors (3552499418).

6431009782 is a wasteful number, since it uses less digits than its factorization.

6431009782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48431.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6431009782 is about 80193.5769373084. The cubic root of 6431009782 is about 1859.6293420655.

The spelling of 6431009782 in words is "six billion, four hundred thirty-one million, nine thousand, seven hundred eighty-two".