61424421213 has 16 divisors (see below), whose sum is σ = 83703214080. Its totient is φ = 40048901616.

The previous prime is 61424421151. The next prime is 61424421217. The reversal of 61424421213 is 31212442416.

It is not a de Polignac number, because 61424421213 - 2¹³ = 61424413021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61424421217) 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, 33408 + ... + 352086.

It is an arithmetic number, because the mean of its divisors is an integer number (5231450880).

Almost surely, 2^61424421213 is an apocalyptic number.

It is an amenable number.

61424421213 is a deficient number, since it is larger than the sum of its proper divisors (22278792867).

61424421213 is a wasteful number, since it uses less digits than its factorization.

61424421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320096.

The product of its digits is 9216, while the sum is 30.

Adding to 61424421213 its reverse (31212442416), we get a palindrome (92636863629).

The spelling of 61424421213 in words is "sixty-one billion, four hundred twenty-four million, four hundred twenty-one thousand, two hundred thirteen".