50809690620 has 144 divisors (see below), whose sum is σ = 166611436992. Its totient is φ = 12459294720.

The previous prime is 50809690577. The next prime is 50809690637. The reversal of 50809690620 is 2609690805.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 574140 + ... + 656700.

It is an arithmetic number, because the mean of its divisors is an integer number (1157023868).

Almost surely, 2^50809690620 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 50809690620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83305718496).

50809690620 is an abundant number, since it is smaller than the sum of its proper divisors (115801746372).

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

50809690620 is a wasteful number, since it uses less digits than its factorization.

50809690620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82852 (or 82847 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 50809690620 in words is "fifty billion, eight hundred nine million, six hundred ninety thousand, six hundred twenty".