20473443674 has 4 divisors (see below), whose sum is σ = 30710165514. Its totient is φ = 10236721836.

The previous prime is 20473443647. The next prime is 20473443713. The reversal of 20473443674 is 47634437402.

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

It can be written as a sum of positive squares in only one way, i.e., 19752897025 + 720546649 = 140545^2 + 26843^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5118360917 + ... + 5118360920.

Almost surely, 2^20473443674 is an apocalyptic number.

20473443674 is a deficient number, since it is larger than the sum of its proper divisors (10236721840).

20473443674 is a wasteful number, since it uses less digits than its factorization.

20473443674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236721839.

The product of its (nonzero) digits is 1354752, while the sum is 44.

The spelling of 20473443674 in words is "twenty billion, four hundred seventy-three million, four hundred forty-three thousand, six hundred seventy-four".