84136122050 has 162 divisors, whose sum is σ = 176842524267. Its totient is φ = 29771400960.

The previous prime is 84136121941. The next prime is 84136122073. The reversal of 84136122050 is 5022163148.

It can be written as a sum of positive squares in 5 ways, for example, as 54784551721 + 29351570329 = 234061^2 + 171323^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=205105.

It is a super-2 number, since 2×84136122050² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84136121998 and 84136122016.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 662489087 + ... + 662489213.

Almost surely, 2^84136122050 is an apocalyptic number.

84136122050 is an abundant number, since it is smaller than the sum of its proper divisors (92706402217).

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

84136122050 is a wasteful number, since it uses less digits than its factorization.

84136122050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Multiplying 84136122050 by its sum of digits (32), we get a square (2692355905600 = 1640840²).

Adding to 84136122050 its reverse (5022163148), we get a palindrome (89158285198).

The spelling of 84136122050 in words is "eighty-four billion, one hundred thirty-six million, one hundred twenty-two thousand, fifty".