640292975224 has 320 divisors, whose sum is σ = 1496180367360. Its totient is φ = 256466972160.

The previous prime is 640292975209. The next prime is 640292975251. The reversal of 640292975224 is 422579292046.

It is a happy number.

640292975224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3834089589 + ... + 3834089755.

It is an arithmetic number, because the mean of its divisors is an integer number (4675563648).

Almost surely, 2^640292975224 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 640292975224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748090183680).

640292975224 is an abundant number, since it is smaller than the sum of its proper divisors (855887392136).

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

640292975224 is a wasteful number, since it uses less digits than its factorization.

640292975224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 640292975224 in words is "six hundred forty billion, two hundred ninety-two million, nine hundred seventy-five thousand, two hundred twenty-four".