50401592720640 has 1440 divisors, whose sum is σ = 210502561167360. Its totient is φ = 11277022445568.

The previous prime is 50401592720639. The next prime is 50401592720681. The reversal of 50401592720640 is 4602729510405.

50401592720640 is a `hidden beast` number, since 50 + 4 + 0 + 1 + 592 + 7 + 2 + 0 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

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 159 ways as a sum of consecutive naturals, for example, 7926021781 + ... + 7926028139.

It is an arithmetic number, because the mean of its divisors is an integer number (146182334144).

Almost surely, 2^{50401592720640} 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 50401592720640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105251280583680).

50401592720640 is an abundant number, since it is smaller than the sum of its proper divisors (160100968446720).

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

50401592720640 is a wasteful number, since it uses less digits than its factorization.

50401592720640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629 (or 6606 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 50401592720640 in words is "fifty trillion, four hundred one billion, five hundred ninety-two million, seven hundred twenty thousand, six hundred forty".