50811886368 has 144 divisors (see below), whose sum is σ = 148124392416. Its totient is φ = 16513459200.

The previous prime is 50811886351. The next prime is 50811886397. The reversal of 50811886368 is 86368811805.

50811886368 is a `hidden beast` number, since 508 + 1 + 18 + 8 + 63 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7439371 + ... + 7446197.

It is an arithmetic number, because the mean of its divisors is an integer number (1028641614).

Almost surely, 2^50811886368 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 50811886368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74062196208).

50811886368 is an abundant number, since it is smaller than the sum of its proper divisors (97312506048).

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

50811886368 is a wasteful number, since it uses less digits than its factorization.

50811886368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7487 (or 7476 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 50811886368 in words is "fifty billion, eight hundred eleven million, eight hundred eighty-six thousand, three hundred sixty-eight".