28632120432847 has 2 divisors, whose sum is σ = 28632120432848. Its totient is φ = 28632120432846.

The previous prime is 28632120432781. The next prime is 28632120432893. The reversal of 28632120432847 is 74823402123682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28632120432847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28632120432794 and 28632120432803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28632120432947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14316060216423 + 14316060216424.

It is an arithmetic number, because the mean of its divisors is an integer number (14316060216424).

Almost surely, 2^{28632120432847} is an apocalyptic number.

28632120432847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28632120432847 is an equidigital number, since it uses as much as digits as its factorization.

28632120432847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 28632120432847 in words is "twenty-eight trillion, six hundred thirty-two billion, one hundred twenty million, four hundred thirty-two thousand, eight hundred forty-seven".