12536542021050 has 192 divisors, whose sum is σ = 35828260416000. Its totient is φ = 3219497729280.

The previous prime is 12536542021007. The next prime is 12536542021061. The reversal of 12536542021050 is 5012024563521.

12536542021050 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 6 + 542 + 0 + 2 + 105 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12536542020996 and 12536542021014.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14817759 + ... + 15640941.

It is an arithmetic number, because the mean of its divisors is an integer number (186605523000).

Almost surely, 2^{12536542021050} is an apocalyptic number.

12536542021050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12536542021050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17914130208000).

12536542021050 is an abundant number, since it is smaller than the sum of its proper divisors (23291718394950).

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

12536542021050 is a wasteful number, since it uses less digits than its factorization.

12536542021050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823622 (or 823611 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 12536542021050 its reverse (5012024563521), we get a palindrome (17548566584571).

The spelling of 12536542021050 in words is "twelve trillion, five hundred thirty-six billion, five hundred forty-two million, twenty-one thousand, fifty".