21302466029 has 16 divisors (see below), whose sum is σ = 24445351728. Its totient is φ = 18389210112.

The previous prime is 21302466007. The next prime is 21302466049. The reversal of 21302466029 is 92066420312.

It can be written as a sum of positive squares in 8 ways, for example, as 4402986025 + 16899480004 = 66355^2 + 129998^2 .

It is not a de Polignac number, because 21302466029 - 2²⁸ = 21034030573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21302466029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302466049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272282 + ... + 341675.

It is an arithmetic number, because the mean of its divisors is an integer number (1527834483).

Almost surely, 2^21302466029 is an apocalyptic number.

It is an amenable number.

21302466029 is a deficient number, since it is larger than the sum of its proper divisors (3142885699).

21302466029 is a wasteful number, since it uses less digits than its factorization.

21302466029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614144.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 21302466029 in words is "twenty-one billion, three hundred two million, four hundred sixty-six thousand, twenty-nine".