21435545035 has 32 divisors (see below), whose sum is σ = 26872860672. Its totient is φ = 16399071360.

The previous prime is 21435545017. The next prime is 21435545041. The reversal of 21435545035 is 53054553412.

It is not a de Polignac number, because 21435545035 - 2⁹ = 21435544523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21435544985 and 21435545003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4555494 + ... + 4560196.

It is an arithmetic number, because the mean of its divisors is an integer number (839776896).

Almost surely, 2^21435545035 is an apocalyptic number.

21435545035 is a deficient number, since it is larger than the sum of its proper divisors (5437315637).

21435545035 is a wasteful number, since it uses less digits than its factorization.

21435545035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 21435545035 in words is "twenty-one billion, four hundred thirty-five million, five hundred forty-five thousand, thirty-five".