50399631360 has 1152 divisors, whose sum is σ = 206057779200. Its totient is φ = 11289231360.

The previous prime is 50399631313. The next prime is 50399631361. The reversal of 50399631360 is 6313699305.

50399631360 is a `hidden beast` number, since 5 + 0 + 3 + 9 + 9 + 631 + 3 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50399631361) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 854231011 + ... + 854231069.

It is an arithmetic number, because the mean of its divisors is an integer number (178869600).

Almost surely, 2^50399631360 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 50399631360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103028889600).

50399631360 is an abundant number, since it is smaller than the sum of its proper divisors (155658147840).

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

50399631360 is a wasteful number, since it uses less digits than its factorization.

50399631360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 45.

The spelling of 50399631360 in words is "fifty billion, three hundred ninety-nine million, six hundred thirty-one thousand, three hundred sixty".