20073448051 has 4 divisors (see below), whose sum is σ = 20615973712. Its totient is φ = 19530922392.

The previous prime is 20073448001. The next prime is 20073448061. The reversal of 20073448051 is 15084437002.

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

It is a cyclic number.

It is not a de Polignac number, because 20073448051 - 2⁹ = 20073447539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20073447998 and 20073448016.

It is not an unprimeable number, because it can be changed into a prime (20073448001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271262775 + ... + 271262848.

It is an arithmetic number, because the mean of its divisors is an integer number (5153993428).

Almost surely, 2^20073448051 is an apocalyptic number.

20073448051 is a deficient number, since it is larger than the sum of its proper divisors (542525661).

20073448051 is an equidigital number, since it uses as much as digits as its factorization.

20073448051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542525660.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 20073448051 in words is "twenty billion, seventy-three million, four hundred forty-eight thousand, fifty-one".