50891765414256 has 240 divisors, whose sum is σ = 159320844000864. Its totient is φ = 15633615900672.

The previous prime is 50891765414251. The next prime is 50891765414279. The reversal of 50891765414256 is 65241456719805.

It is a happy number.

50891765414256 is a `hidden beast` number, since 5 + 0 + 8 + 91 + 76 + 54 + 1 + 425 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 50891765414193 and 50891765414202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50891765414251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30369700 + ... + 32001596.

Almost surely, 2^{50891765414256} 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 50891765414256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79660422000432).

50891765414256 is an abundant number, since it is smaller than the sum of its proper divisors (108429078586608).

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

50891765414256 is a wasteful number, since it uses less digits than its factorization.

50891765414256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632550 (or 1632532 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 63.

The spelling of 50891765414256 in words is "fifty trillion, eight hundred ninety-one billion, seven hundred sixty-five million, four hundred fourteen thousand, two hundred fifty-six".