20925073087329 has 16 divisors (see below), whose sum is σ = 28530769639680. Its totient is φ = 13635484569600.

The previous prime is 20925073087309. The next prime is 20925073087343. The reversal of 20925073087329 is 92378037052902.

It is a happy number.

It is not a de Polignac number, because 20925073087329 - 2¹⁹ = 20925072563041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20925073087309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96383622 + ... + 96600479.

It is an arithmetic number, because the mean of its divisors is an integer number (1783173102480).

Almost surely, 2^{20925073087329} is an apocalyptic number.

It is an amenable number.

20925073087329 is a deficient number, since it is larger than the sum of its proper divisors (7605696552351).

20925073087329 is a wasteful number, since it uses less digits than its factorization.

20925073087329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192984920.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 20925073087329 in words is "twenty trillion, nine hundred twenty-five billion, seventy-three million, eighty-seven thousand, three hundred twenty-nine".