50998465440 has 576 divisors, whose sum is σ = 199013068800. Its totient is φ = 11788664832.

The previous prime is 50998465439. The next prime is 50998465487. The reversal of 50998465440 is 4456489905.

50998465440 is a `hidden beast` number, since 5 + 0 + 9 + 98 + 4 + 6 + 544 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 45170796 + ... + 45171924.

It is an arithmetic number, because the mean of its divisors is an integer number (345508800).

Almost surely, 2^50998465440 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 50998465440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99506534400).

50998465440 is an abundant number, since it is smaller than the sum of its proper divisors (148014603360).

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

50998465440 is a wasteful number, since it uses less digits than its factorization.

50998465440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 50998465440 in words is "fifty billion, nine hundred ninety-eight million, four hundred sixty-five thousand, four hundred forty".