20472885719 has 16 divisors (see below), whose sum is σ = 25317962880. Its totient is φ = 16275828960.

The previous prime is 20472885701. The next prime is 20472885721. The reversal of 20472885719 is 91758827402.

It is a cyclic number.

It is not a de Polignac number, because 20472885719 - 2²⁸ = 20204450263 is a prime.

It is a super-2 number, since 2×20472885719² (a number of 21 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 (20472815719) 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, 3764837 + ... + 3770270.

It is an arithmetic number, because the mean of its divisors is an integer number (1582372680).

Almost surely, 2^20472885719 is an apocalyptic number.

20472885719 is a deficient number, since it is larger than the sum of its proper divisors (4845077161).

20472885719 is a wasteful number, since it uses less digits than its factorization.

20472885719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535150.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 20472885719 in words is "twenty billion, four hundred seventy-two million, eight hundred eighty-five thousand, seven hundred nineteen".