49559728140 has 288 divisors, whose sum is σ = 165110400000. Its totient is φ = 11959073280.

The previous prime is 49559728133. The next prime is 49559728189. The reversal of 49559728140 is 4182795594.

It is a happy number.

49559728140 is a `hidden beast` number, since 4 + 9 + 5 + 597 + 2 + 8 + 1 + 40 = 666.

49559728140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33061111 + ... + 33062609.

It is an arithmetic number, because the mean of its divisors is an integer number (573300000).

Almost surely, 2^49559728140 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 49559728140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82555200000).

49559728140 is an abundant number, since it is smaller than the sum of its proper divisors (115550671860).

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

49559728140 is a wasteful number, since it uses less digits than its factorization.

49559728140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 49559728140 in words is "forty-nine billion, five hundred fifty-nine million, seven hundred twenty-eight thousand, one hundred forty".