20573386342 has 4 divisors (see below), whose sum is σ = 30860079516. Its totient is φ = 10286693170.

The previous prime is 20573386331. The next prime is 20573386343. The reversal of 20573386342 is 24368337502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20573386343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5143346584 + ... + 5143346587.

It is an arithmetic number, because the mean of its divisors is an integer number (7715019879).

Almost surely, 2^20573386342 is an apocalyptic number.

20573386342 is a deficient number, since it is larger than the sum of its proper divisors (10286693174).

20573386342 is a wasteful number, since it uses less digits than its factorization.

20573386342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286693173.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 20573386342 in words is "twenty billion, five hundred seventy-three million, three hundred eighty-six thousand, three hundred forty-two".