50611818218 has 16 divisors (see below), whose sum is σ = 83097842856. Its totient is φ = 22976360640.

The previous prime is 50611818203. The next prime is 50611818239. The reversal of 50611818218 is 81281811605.

It can be written as a sum of positive squares in 4 ways, for example, as 4992411649 + 45619406569 = 70657^2 + 213587^2 .

It is a super-2 number, since 2×50611818218² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15954221 + ... + 15957392.

Almost surely, 2^50611818218 is an apocalyptic number.

50611818218 is a deficient number, since it is larger than the sum of its proper divisors (32486024638).

50611818218 is a wasteful number, since it uses less digits than its factorization.

50611818218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31911689.

The product of its (nonzero) digits is 30720, while the sum is 41.

The spelling of 50611818218 in words is "fifty billion, six hundred eleven million, eight hundred eighteen thousand, two hundred eighteen".