28547672597 has 2 divisors, whose sum is σ = 28547672598. Its totient is φ = 28547672596.

The previous prime is 28547672561. The next prime is 28547672617. The reversal of 28547672597 is 79527674582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19544319601 + 9003352996 = 139801^2 + 94886^2 .

It is a cyclic number.

It is not a de Polignac number, because 28547672597 - 2⁸ = 28547672341 is a prime.

It is a super-2 number, since 2×28547672597² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28547671597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14273836298 + 14273836299.

It is an arithmetic number, because the mean of its divisors is an integer number (14273836299).

Almost surely, 2^28547672597 is an apocalyptic number.

It is an amenable number.

28547672597 is a deficient number, since it is larger than the sum of its proper divisors (1).

28547672597 is an equidigital number, since it uses as much as digits as its factorization.

28547672597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59270400, while the sum is 62.

The spelling of 28547672597 in words is "twenty-eight billion, five hundred forty-seven million, six hundred seventy-two thousand, five hundred ninety-seven".