6431494608 has 720 divisors, whose sum is σ = 24666754560. Its totient is φ = 1616630400.

The previous prime is 6431494583. The next prime is 6431494673. The reversal of 6431494608 is 8064941346.

6431494608 is a `hidden beast` number, since 6 + 4 + 31 + 4 + 9 + 4 + 608 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 207467553 + ... + 207467583.

Almost surely, 2^6431494608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6431494608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12333377280).

6431494608 is an abundant number, since it is smaller than the sum of its proper divisors (18235259952).

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

6431494608 is a wasteful number, since it uses less digits than its factorization.

6431494608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 6431494608 is about 80196.5997284174. The cubic root of 6431494608 is about 1859.6760726221.

The spelling of 6431494608 in words is "six billion, four hundred thirty-one million, four hundred ninety-four thousand, six hundred eight".