20470453443 has 48 divisors (see below), whose sum is σ = 32705202816. Its totient is φ = 12234808320.

The previous prime is 20470453441. The next prime is 20470453477. The reversal of 20470453443 is 34435407402.

20470453443 is a `hidden beast` number, since 204 + 7 + 0 + 4 + 5 + 3 + 443 = 666.

It is not a de Polignac number, because 20470453443 - 2¹ = 20470453441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20470453398 and 20470453407.

It is not an unprimeable number, because it can be changed into a prime (20470453441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2400355 + ... + 2408867.

It is an arithmetic number, because the mean of its divisors is an integer number (681358392).

Almost surely, 2^20470453443 is an apocalyptic number.

20470453443 is a deficient number, since it is larger than the sum of its proper divisors (12234749373).

20470453443 is a wasteful number, since it uses less digits than its factorization.

20470453443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864 (or 8861 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 36.

The spelling of 20470453443 in words is "twenty billion, four hundred seventy million, four hundred fifty-three thousand, four hundred forty-three".