50018390016 has 208 divisors, whose sum is σ = 153467624448. Its totient is φ = 14192640000.

The previous prime is 50018389963. The next prime is 50018390069. The reversal of 50018390016 is 61009381005.

It is an interprime number because it is at equal distance from previous prime (50018389963) and next prime (50018390069).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12986491 + ... + 12990341.

Almost surely, 2^50018390016 is an apocalyptic number.

50018390016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50018390016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76733812224).

50018390016 is an abundant number, since it is smaller than the sum of its proper divisors (103449234432).

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

50018390016 is a wasteful number, since it uses less digits than its factorization.

50018390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 4014 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 50018390016 in words is "fifty billion, eighteen million, three hundred ninety thousand, sixteen".