50389963536 has 320 divisors, whose sum is σ = 154325836800. Its totient is φ = 14005094400.

The previous prime is 50389963511. The next prime is 50389963567. The reversal of 50389963536 is 63536998305.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41000170 + ... + 41001398.

It is an arithmetic number, because the mean of its divisors is an integer number (482268240).

Almost surely, 2^50389963536 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 50389963536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77162918400).

50389963536 is an abundant number, since it is smaller than the sum of its proper divisors (103935873264).

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

50389963536 is a wasteful number, since it uses less digits than its factorization.

50389963536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 57.

The spelling of 50389963536 in words is "fifty billion, three hundred eighty-nine million, nine hundred sixty-three thousand, five hundred thirty-six".