20500902270869 has 8 divisors (see below), whose sum is σ = 20510658009912. Its totient is φ = 20491147247040.

The previous prime is 20500902270853. The next prime is 20500902270881. The reversal of 20500902270869 is 96807220900502.

It can be written as a sum of positive squares in 4 ways, for example, as 5059971315844 + 15440930955025 = 2249438^2 + 3929495^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20500902270869 - 2⁴ = 20500902270853 is a prime.

It is a super-2 number, since 2×20500902270869² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20500902270809) 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, 62327099 + ... + 62655159.

It is an arithmetic number, because the mean of its divisors is an integer number (2563832251239).

Almost surely, 2^{20500902270869} is an apocalyptic number.

It is an amenable number.

20500902270869 is a deficient number, since it is larger than the sum of its proper divisors (9755739043).

20500902270869 is a wasteful number, since it uses less digits than its factorization.

20500902270869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357607.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 20500902270869 in words is "twenty trillion, five hundred billion, nine hundred two million, two hundred seventy thousand, eight hundred sixty-nine".