20475472727743 has 4 divisors (see below), whose sum is σ = 22336879339368. Its totient is φ = 18614066116120.

The previous prime is 20475472727627. The next prime is 20475472727779. The reversal of 20475472727743 is 34772727457402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20475472727743 - 2¹⁷ = 20475472596671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20475472127743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930703305796 + ... + 930703305817.

It is an arithmetic number, because the mean of its divisors is an integer number (5584219834842).

Almost surely, 2^{20475472727743} is an apocalyptic number.

20475472727743 is a deficient number, since it is larger than the sum of its proper divisors (1861406611625).

20475472727743 is a wasteful number, since it uses less digits than its factorization.

20475472727743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861406611624.

The product of its (nonzero) digits is 129077760, while the sum is 61.

The spelling of 20475472727743 in words is "twenty trillion, four hundred seventy-five billion, four hundred seventy-two million, seven hundred twenty-seven thousand, seven hundred forty-three".