28601204813 has 2 divisors, whose sum is σ = 28601204814. Its totient is φ = 28601204812.

The previous prime is 28601204747. The next prime is 28601204851. The reversal of 28601204813 is 31840210682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28588722724 + 12482089 = 169082^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 28601204813 - 2¹⁰ = 28601203789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28601204893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300602406 + 14300602407.

It is an arithmetic number, because the mean of its divisors is an integer number (14300602407).

Almost surely, 2^28601204813 is an apocalyptic number.

It is an amenable number.

28601204813 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601204813 is an equidigital number, since it uses as much as digits as its factorization.

28601204813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 28601204813 in words is "twenty-eight billion, six hundred one million, two hundred four thousand, eight hundred thirteen".