50518971959040 has 540 divisors, whose sum is σ = 195740896156344. Its totient is φ = 12435434938368.

The previous prime is 50518971959009. The next prime is 50518971959047. The reversal of 50518971959040 is 4095917981505.

50518971959040 is a `hidden beast` number, since 5 + 0 + 518 + 9 + 71 + 9 + 5 + 9 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (540).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50518971959047) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 16080327 + ... + 18963513.

Almost surely, 2^{50518971959040} 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 50518971959040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97870448078172).

50518971959040 is an abundant number, since it is smaller than the sum of its proper divisors (145221924197304).

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

50518971959040 is a wasteful number, since it uses less digits than its factorization.

50518971959040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883246 (or 2883210 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 63.

The spelling of 50518971959040 in words is "fifty trillion, five hundred eighteen billion, nine hundred seventy-one million, nine hundred fifty-nine thousand, forty".