12546421035 has 16 divisors (see below), whose sum is σ = 20078108160. Its totient is φ = 6690146400.

The previous prime is 12546420973. The next prime is 12546421037. The reversal of 12546421035 is 53012464521.

It is not a de Polignac number, because 12546421035 - 2⁷ = 12546420907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12546420987 and 12546421005.

It is not an unprimeable number, because it can be changed into a prime (12546421037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4110 + ... + 158460.

It is an arithmetic number, because the mean of its divisors is an integer number (1254881760).

Almost surely, 2^12546421035 is an apocalyptic number.

12546421035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12546421035 is a deficient number, since it is larger than the sum of its proper divisors (7531687125).

12546421035 is a wasteful number, since it uses less digits than its factorization.

12546421035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159778.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 12546421035 its reverse (53012464521), we get a palindrome (65558885556).

The spelling of 12546421035 in words is "twelve billion, five hundred forty-six million, four hundred twenty-one thousand, thirty-five".