20628264712241 has 4 divisors (see below), whose sum is σ = 20628730942500. Its totient is φ = 20627798481984.

The previous prime is 20628264712213. The next prime is 20628264712247. The reversal of 20628264712241 is 14221746282602.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1170496791025 + 19457767921216 = 1081895^2 + 4411096^2 .

It is a cyclic number.

It is not a de Polignac number, because 20628264712241 - 2³⁰ = 20627190970417 is a prime.

It is a super-3 number, since 3×20628264712241³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20628264712247) 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, 233048756 + ... + 233137253.

It is an arithmetic number, because the mean of its divisors is an integer number (5157182735625).

Almost surely, 2^{20628264712241} is an apocalyptic number.

It is an amenable number.

20628264712241 is a deficient number, since it is larger than the sum of its proper divisors (466230259).

20628264712241 is an equidigital number, since it uses as much as digits as its factorization.

20628264712241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466230258.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 20628264712241 in words is "twenty trillion, six hundred twenty-eight billion, two hundred sixty-four million, seven hundred twelve thousand, two hundred forty-one".