50989019904 has 216 divisors, whose sum is σ = 157421562480. Its totient is φ = 15815737344.

The previous prime is 50989019801. The next prime is 50989019927. The reversal of 50989019904 is 40991098905.

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 23 ways as a sum of consecutive naturals, for example, 3478639 + ... + 3493265.

It is an arithmetic number, because the mean of its divisors is an integer number (728803530).

Almost surely, 2^50989019904 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 50989019904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78710781240).

50989019904 is an abundant number, since it is smaller than the sum of its proper divisors (106432542576).

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

50989019904 is a wasteful number, since it uses less digits than its factorization.

50989019904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755 (or 14738 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 50989019904 in words is "fifty billion, nine hundred eighty-nine million, nineteen thousand, nine hundred four".