20356372273 has 8 divisors (see below), whose sum is σ = 20398248000. Its totient is φ = 20314524048.

The previous prime is 20356372261. The next prime is 20356372279. The reversal of 20356372273 is 37227365302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20356372273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20356372279) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2111458 + ... + 2121076.

It is an arithmetic number, because the mean of its divisors is an integer number (2549781000).

Almost surely, 2^20356372273 is an apocalyptic number.

It is an amenable number.

20356372273 is a deficient number, since it is larger than the sum of its proper divisors (41875727).

20356372273 is an equidigital number, since it uses as much as digits as its factorization.

20356372273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13751.

The product of its (nonzero) digits is 317520, while the sum is 40.

The spelling of 20356372273 in words is "twenty billion, three hundred fifty-six million, three hundred seventy-two thousand, two hundred seventy-three".