50181985017 has 12 divisors (see below), whose sum is σ = 73566957360. Its totient is φ = 32955333048.

The previous prime is 50181985003. The next prime is 50181985031. The reversal of 50181985017 is 71058918105.

50181985017 is a `hidden beast` number, since 50 + 1 + 8 + 1 + 98 + 501 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (50181985003) and next prime (50181985031).

It is not a de Polignac number, because 50181985017 - 2⁶ = 50181984953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50181985067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41609667 + ... + 41610872.

It is an arithmetic number, because the mean of its divisors is an integer number (6130579780).

Almost surely, 2^50181985017 is an apocalyptic number.

It is an amenable number.

50181985017 is a deficient number, since it is larger than the sum of its proper divisors (23384972343).

50181985017 is a wasteful number, since it uses less digits than its factorization.

50181985017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83220612 (or 83220609 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 45.

The spelling of 50181985017 in words is "fifty billion, one hundred eighty-one million, nine hundred eighty-five thousand, seventeen".