20028670642713 has 4 divisors (see below), whose sum is σ = 26704894190288. Its totient is φ = 13352447095140.

The previous prime is 20028670642703. The next prime is 20028670642741. The reversal of 20028670642713 is 31724607682002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20028670642713 - 2⁵ = 20028670642681 is a prime.

It is a super-2 number, since 2×20028670642713² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20028670642703) 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, 3338111773783 + ... + 3338111773788.

It is an arithmetic number, because the mean of its divisors is an integer number (6676223547572).

Almost surely, 2^{20028670642713} is an apocalyptic number.

It is an amenable number.

20028670642713 is a deficient number, since it is larger than the sum of its proper divisors (6676223547575).

20028670642713 is an equidigital number, since it uses as much as digits as its factorization.

20028670642713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6676223547574.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 20028670642713 in words is "twenty trillion, twenty-eight billion, six hundred seventy million, six hundred forty-two thousand, seven hundred thirteen".