28287167413 has 2 divisors, whose sum is σ = 28287167414. Its totient is φ = 28287167412.

The previous prime is 28287167383. The next prime is 28287167417. The reversal of 28287167413 is 31476178282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17123554449 + 11163612964 = 130857^2 + 105658^2 .

It is a cyclic number.

It is not a de Polignac number, because 28287167413 - 2²⁹ = 27750296501 is a prime.

It is a super-2 number, since 2×28287167413² (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 (28287167417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143583706 + 14143583707.

It is an arithmetic number, because the mean of its divisors is an integer number (14143583707).

Almost surely, 2^28287167413 is an apocalyptic number.

It is an amenable number.

28287167413 is a deficient number, since it is larger than the sum of its proper divisors (1).

28287167413 is an equidigital number, since it uses as much as digits as its factorization.

28287167413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The spelling of 28287167413 in words is "twenty-eight billion, two hundred eighty-seven million, one hundred sixty-seven thousand, four hundred thirteen".