20472827452 has 48 divisors (see below), whose sum is σ = 45085517568. Its totient is φ = 7901867520.

The previous prime is 20472827447. The next prime is 20472827471. The reversal of 20472827452 is 25472827402.

It is a junction number, because it is equal to n+sod(n) for n = 20472827399 and 20472827408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277653 + ... + 343564.

It is an arithmetic number, because the mean of its divisors is an integer number (939281616).

Almost surely, 2^20472827452 is an apocalyptic number.

20472827452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20472827452 is an abundant number, since it is smaller than the sum of its proper divisors (24612690116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20472827452 is a wasteful number, since it uses less digits than its factorization.

20472827452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621346 (or 621344 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 43.

The spelling of 20472827452 in words is "twenty billion, four hundred seventy-two million, eight hundred twenty-seven thousand, four hundred fifty-two".