28054223147 has 2 divisors, whose sum is σ = 28054223148. Its totient is φ = 28054223146.

The previous prime is 28054223143. The next prime is 28054223177. The reversal of 28054223147 is 74132245082.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28054223147 - 2² = 28054223143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28054223147.

It is not a weakly prime, because it can be changed into another prime (28054223143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14027111573 + 14027111574.

It is an arithmetic number, because the mean of its divisors is an integer number (14027111574).

Almost surely, 2^28054223147 is an apocalyptic number.

28054223147 is a deficient number, since it is larger than the sum of its proper divisors (1).

28054223147 is an equidigital number, since it uses as much as digits as its factorization.

28054223147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 28054223147 in words is "twenty-eight billion, fifty-four million, two hundred twenty-three thousand, one hundred forty-seven".