21266000454013 has 8 divisors (see below), whose sum is σ = 24304060101632. Its totient is φ = 18227955702096.

The previous prime is 21266000454001. The next prime is 21266000454031. The reversal of 21266000454013 is 31045400066212.

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

It is not a de Polignac number, because 21266000454013 - 2⁵ = 21266000453981 is a prime.

It is a super-2 number, since 2×21266000454013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21266000454013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21266000454113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475770 + ... + 6538987.

It is an arithmetic number, because the mean of its divisors is an integer number (3038007512704).

Almost surely, 2^{21266000454013} is an apocalyptic number.

It is an amenable number.

21266000454013 is a deficient number, since it is larger than the sum of its proper divisors (3038059647619).

21266000454013 is an equidigital number, since it uses as much as digits as its factorization.

21266000454013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447851.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 21266000454013 in words is "twenty-one trillion, two hundred sixty-six billion, four hundred fifty-four thousand, thirteen".