20271417543253 has 4 divisors (see below), whose sum is σ = 20283938494560. Its totient is φ = 20258896591948.

The previous prime is 20271417543217. The next prime is 20271417543271. The reversal of 20271417543253 is 35234571417202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20271417543253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271417543203) 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 3 ways as a sum of consecutive naturals, for example, 6260473225 + ... + 6260476462.

It is an arithmetic number, because the mean of its divisors is an integer number (5070984623640).

Almost surely, 2^{20271417543253} is an apocalyptic number.

It is an amenable number.

20271417543253 is a deficient number, since it is larger than the sum of its proper divisors (12520951307).

20271417543253 is a wasteful number, since it uses less digits than its factorization.

20271417543253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520951306.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 20271417543253 in words is "twenty trillion, two hundred seventy-one billion, four hundred seventeen million, five hundred forty-three thousand, two hundred fifty-three".