50699387784 has 64 divisors (see below), whose sum is σ = 132634454400. Its totient is φ = 16119166976.

The previous prime is 50699387773. The next prime is 50699387803. The reversal of 50699387784 is 48778399605.

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 15 ways as a sum of consecutive naturals, for example, 64762 + ... + 324950.

It is an arithmetic number, because the mean of its divisors is an integer number (2072413350).

Almost surely, 2^50699387784 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 50699387784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66317227200).

50699387784 is an abundant number, since it is smaller than the sum of its proper divisors (81935066616).

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

50699387784 is a wasteful number, since it uses less digits than its factorization.

50699387784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260574 (or 260570 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 50699387784 in words is "fifty billion, six hundred ninety-nine million, three hundred eighty-seven thousand, seven hundred eighty-four".