50494772064 has 192 divisors, whose sum is σ = 146556006912. Its totient is φ = 15095808000.

The previous prime is 50494772063. The next prime is 50494772093. The reversal of 50494772064 is 46027749405.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50494772063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25033584 + ... + 25035600.

It is an arithmetic number, because the mean of its divisors is an integer number (763312536).

Almost surely, 2^50494772064 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 50494772064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73278003456).

50494772064 is an abundant number, since it is smaller than the sum of its proper divisors (96061234848).

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

50494772064 is a wasteful number, since it uses less digits than its factorization.

50494772064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 50494772064 in words is "fifty billion, four hundred ninety-four million, seven hundred seventy-two thousand, sixty-four".