50495840640 has 960 divisors, whose sum is σ = 212905424160. Its totient is φ = 11370627072.

The previous prime is 50495840623. The next prime is 50495840653. The reversal of 50495840640 is 4604859405.

50495840640 is a `hidden beast` number, since 5 + 0 + 4 + 9 + 584 + 0 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 261636384 + ... + 261636576.

Almost surely, 2^50495840640 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 50495840640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106452712080).

50495840640 is an abundant number, since it is smaller than the sum of its proper divisors (162409583520).

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

50495840640 is a wasteful number, since it uses less digits than its factorization.

50495840640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 50495840640 in words is "fifty billion, four hundred ninety-five million, eight hundred forty thousand, six hundred forty".