21470732116239 has 32 divisors (see below), whose sum is σ = 33518135992320. Its totient is φ = 11968729401600.

The previous prime is 21470732116237. The next prime is 21470732116271. The reversal of 21470732116239 is 93261123707412.

It is not a de Polignac number, because 21470732116239 - 2¹ = 21470732116237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470732116231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9140209 + ... + 11246549.

It is an arithmetic number, because the mean of its divisors is an integer number (1047441749760).

Almost surely, 2^{21470732116239} is an apocalyptic number.

21470732116239 is a deficient number, since it is larger than the sum of its proper divisors (12047403876081).

21470732116239 is a wasteful number, since it uses less digits than its factorization.

21470732116239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118231.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 21470732116239 in words is "twenty-one trillion, four hundred seventy billion, seven hundred thirty-two million, one hundred sixteen thousand, two hundred thirty-nine".