20238528945129 has 8 divisors (see below), whose sum is σ = 29437860283872. Its totient is φ = 12265775118240.

The previous prime is 20238528945073. The next prime is 20238528945181. The reversal of 20238528945129 is 92154982583202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20238528945129 - 2²⁸ = 20238260509673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20238528944129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306644377924 + ... + 306644377989.

It is an arithmetic number, because the mean of its divisors is an integer number (3679732535484).

Almost surely, 2^{20238528945129} is an apocalyptic number.

It is an amenable number.

20238528945129 is a deficient number, since it is larger than the sum of its proper divisors (9199331338743).

20238528945129 is a wasteful number, since it uses less digits than its factorization.

20238528945129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613288755927.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 20238528945129 in words is "twenty trillion, two hundred thirty-eight billion, five hundred twenty-eight million, nine hundred forty-five thousand, one hundred twenty-nine".