21272862260503 has 8 divisors (see below), whose sum is σ = 24829115830272. Its totient is φ = 17845927002456.

The previous prime is 21272862260483. The next prime is 21272862260521. The reversal of 21272862260503 is 30506226827212.

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

It is a de Polignac number, because none of the positive numbers 2^k-21272862260503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21272862260543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32329577575 + ... + 32329578232.

It is an arithmetic number, because the mean of its divisors is an integer number (3103639478784).

Almost surely, 2^{21272862260503} is an apocalyptic number.

21272862260503 is a deficient number, since it is larger than the sum of its proper divisors (3556253569769).

21272862260503 is an equidigital number, since it uses as much as digits as its factorization.

21272862260503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64659155861.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 21272862260503 in words is "twenty-one trillion, two hundred seventy-two billion, eight hundred sixty-two million, two hundred sixty thousand, five hundred three".