50851247040 has 672 divisors, whose sum is σ = 199254343680. Its totient is φ = 12198574080.

The previous prime is 50851247011. The next prime is 50851247077. The reversal of 50851247040 is 4074215805.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 50851246986 and 50851247004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 132770689 + ... + 132771071.

It is an arithmetic number, because the mean of its divisors is an integer number (296509440).

Almost surely, 2^50851247040 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 50851247040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99627171840).

50851247040 is an abundant number, since it is smaller than the sum of its proper divisors (148403096640).

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

50851247040 is a wasteful number, since it uses less digits than its factorization.

50851247040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 50851247040 in words is "fifty billion, eight hundred fifty-one million, two hundred forty-seven thousand, forty".