50120127515440 has 160 divisors (see below), whose sum is σ = 118793356113600. Its totient is φ = 19662967406592.

The previous prime is 50120127515431. The next prime is 50120127515473. The reversal of 50120127515440 is 4451572102105.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 50120127515440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 441386352 + ... + 441499888.

It is an arithmetic number, because the mean of its divisors is an integer number (742458475710).

Almost surely, 2^{50120127515440} 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 50120127515440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59396678056800).

50120127515440 is an abundant number, since it is smaller than the sum of its proper divisors (68673228598160).

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

50120127515440 is a wasteful number, since it uses less digits than its factorization.

50120127515440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114159 (or 114153 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 50120127515440 its reverse (4451572102105), we get a palindrome (54571699617545).

The spelling of 50120127515440 in words is "fifty trillion, one hundred twenty billion, one hundred twenty-seven million, five hundred fifteen thousand, four hundred forty".