28998552413 has 2 divisors, whose sum is σ = 28998552414. Its totient is φ = 28998552412.

The previous prime is 28998552403. The next prime is 28998552461. The reversal of 28998552413 is 31425589982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17155236484 + 11843315929 = 130978^2 + 108827^2 .

It is a cyclic number.

It is not a de Polignac number, because 28998552413 - 2⁴ = 28998552397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28998552403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14499276206 + 14499276207.

It is an arithmetic number, because the mean of its divisors is an integer number (14499276207).

Almost surely, 2^28998552413 is an apocalyptic number.

It is an amenable number.

28998552413 is a deficient number, since it is larger than the sum of its proper divisors (1).

28998552413 is an equidigital number, since it uses as much as digits as its factorization.

28998552413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 56.

The spelling of 28998552413 in words is "twenty-eight billion, nine hundred ninety-eight million, five hundred fifty-two thousand, four hundred thirteen".