28260332147 has 2 divisors, whose sum is σ = 28260332148. Its totient is φ = 28260332146.

The previous prime is 28260332141. The next prime is 28260332159. The reversal of 28260332147 is 74123306282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28260332147 - 2⁴ = 28260332131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28260332147.

It is not a weakly prime, because it can be changed into another prime (28260332141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14130166073 + 14130166074.

It is an arithmetic number, because the mean of its divisors is an integer number (14130166074).

Almost surely, 2^28260332147 is an apocalyptic number.

28260332147 is a deficient number, since it is larger than the sum of its proper divisors (1).

28260332147 is an equidigital number, since it uses as much as digits as its factorization.

28260332147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 28260332147 in words is "twenty-eight billion, two hundred sixty million, three hundred thirty-two thousand, one hundred forty-seven".