50546643840 has 1536 divisors, whose sum is σ = 233415820800. Its totient is φ = 10346434560.

The previous prime is 50546643761. The next prime is 50546643853. The reversal of 50546643840 is 4834664505.

50546643840 is a `hidden beast` number, since 5 + 0 + 546 + 64 + 3 + 8 + 40 = 666.

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 191 ways as a sum of consecutive naturals, for example, 754427487 + ... + 754427553.

It is an arithmetic number, because the mean of its divisors is an integer number (151963425).

Almost surely, 2^50546643840 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 50546643840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116707910400).

50546643840 is an abundant number, since it is smaller than the sum of its proper divisors (182869176960).

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

50546643840 is an equidigital number, since it uses as much as digits as its factorization.

50546643840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 50546643840 in words is "fifty billion, five hundred forty-six million, six hundred forty-three thousand, eight hundred forty".