28062564213 has 4 divisors (see below), whose sum is σ = 37416752288. Its totient is φ = 18708376140.

The previous prime is 28062564203. The next prime is 28062564223. The reversal of 28062564213 is 31246526082.

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 an interprime number because it is at equal distance from previous prime (28062564203) and next prime (28062564223).

It is not a de Polignac number, because 28062564213 - 2⁵ = 28062564181 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 (28062564203) 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 3 ways as a sum of consecutive naturals, for example, 4677094033 + ... + 4677094038.

It is an arithmetic number, because the mean of its divisors is an integer number (9354188072).

Almost surely, 2^28062564213 is an apocalyptic number.

It is an amenable number.

28062564213 is a deficient number, since it is larger than the sum of its proper divisors (9354188075).

28062564213 is an equidigital number, since it uses as much as digits as its factorization.

28062564213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9354188074.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 28062564213 in words is "twenty-eight billion, sixty-two million, five hundred sixty-four thousand, two hundred thirteen".