640322833410 has 48 divisors (see below), whose sum is σ = 1792903936824. Its totient is φ = 157617927936.

The previous prime is 640322833279. The next prime is 640322833417. The reversal of 640322833410 is 14338223046.

640322833410 is a `hidden beast` number, since 6 + 4 + 0 + 32 + 283 + 341 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 202141059201 + 438181774209 = 449601^2 + 661953^2 .

It is a super-2 number, since 2×640322833410² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (640322833417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273641067 + ... + 273643406.

Almost surely, 2^640322833410 is an apocalyptic number.

640322833410 is an abundant number, since it is smaller than the sum of its proper divisors (1152581103414).

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

640322833410 is a wasteful number, since it uses less digits than its factorization.

640322833410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547284499 (or 547284496 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 640322833410 in words is "six hundred forty billion, three hundred twenty-two million, eight hundred thirty-three thousand, four hundred ten".