50172002118 has 96 divisors (see below), whose sum is σ = 126381702720. Its totient is φ = 14087623680.

The previous prime is 50172002117. The next prime is 50172002159. The reversal of 50172002118 is 81120027105.

It is a junction number, because it is equal to n+sod(n) for n = 50172002091 and 50172002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50172002117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12364746 + ... + 12368802.

It is an arithmetic number, because the mean of its divisors is an integer number (1316476070).

Almost surely, 2^50172002118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50172002118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63190851360).

50172002118 is an abundant number, since it is smaller than the sum of its proper divisors (76209700602).

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

50172002118 is a wasteful number, since it uses less digits than its factorization.

50172002118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742 (or 5739 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The spelling of 50172002118 in words is "fifty billion, one hundred seventy-two million, two thousand, one hundred eighteen".