50644715658 has 8 divisors (see below), whose sum is σ = 101289431328. Its totient is φ = 16881571884.

The previous prime is 50644715621. The next prime is 50644715659. The reversal of 50644715658 is 85651744605.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

50644715658 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 50644715658.

It is not an unprimeable number, because it can be changed into a prime (50644715659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220392966 + ... + 4220392977.

It is an arithmetic number, because the mean of its divisors is an integer number (12661178916).

Almost surely, 2^50644715658 is an apocalyptic number.

50644715658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

50644715658 is a wasteful number, since it uses less digits than its factorization.

50644715658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440785948.

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 50644715658 in words is "fifty billion, six hundred forty-four million, seven hundred fifteen thousand, six hundred fifty-eight".