12546422052 has 48 divisors (see below), whose sum is σ = 30242763264. Its totient is φ = 4044096000.

The previous prime is 12546422041. The next prime is 12546422071. The reversal of 12546422052 is 25022464521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493902 + ... + 518682.

It is an arithmetic number, because the mean of its divisors is an integer number (630057568).

Almost surely, 2^12546422052 is an apocalyptic number.

12546422052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12546422052 is an abundant number, since it is smaller than the sum of its proper divisors (17696341212).

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

12546422052 is a wasteful number, since it uses less digits than its factorization.

12546422052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26180 (or 26178 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 12546422052 its reverse (25022464521), we get a palindrome (37568886573).

The spelling of 12546422052 in words is "twelve billion, five hundred forty-six million, four hundred twenty-two thousand, fifty-two".