50139648000 has 1248 divisors, whose sum is σ = 208372749312. Its totient is φ = 11943936000.

The previous prime is 50139647993. The next prime is 50139648001. The reversal of 50139648000 is 84693105.

50139648000 is a `hidden beast` number, since 5 + 0 + 1 + 3 + 9 + 648 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1248).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139648001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1617407985 + ... + 1617408015.

It is an arithmetic number, because the mean of its divisors is an integer number (166965344).

Almost surely, 2^50139648000 is an apocalyptic number.

50139648000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50139648000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104186374656).

50139648000 is an abundant number, since it is smaller than the sum of its proper divisors (158233101312).

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

50139648000 is an equidigital number, since it uses as much as digits as its factorization.

50139648000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 50139648000 in words is "fifty billion, one hundred thirty-nine million, six hundred forty-eight thousand".