36421422561 has 24 divisors (see below), whose sum is σ = 54714710336. Its totient is φ = 23327468640.

The previous prime is 36421422529. The next prime is 36421422577. The reversal of 36421422561 is 16522412463.

36421422561 is a `hidden beast` number, since 3 + 6 + 421 + 4 + 225 + 6 + 1 = 666.

It is not a de Polignac number, because 36421422561 - 2⁵ = 36421422529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36421422361) 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 23 ways as a sum of consecutive naturals, for example, 747805 + ... + 795018.

Almost surely, 2^36421422561 is an apocalyptic number.

It is an amenable number.

36421422561 is a deficient number, since it is larger than the sum of its proper divisors (18293287775).

36421422561 is a wasteful number, since it uses less digits than its factorization.

36421422561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542933 (or 1542930 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 36421422561 in words is "thirty-six billion, four hundred twenty-one million, four hundred twenty-two thousand, five hundred sixty-one".