28288769347 has 2 divisors, whose sum is σ = 28288769348. Its totient is φ = 28288769346.

The previous prime is 28288769329. The next prime is 28288769371. The reversal of 28288769347 is 74396788282.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28288769347 - 2⁷ = 28288769219 is a prime.

It is not a weakly prime, because it can be changed into another prime (28288760347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14144384673 + 14144384674.

It is an arithmetic number, because the mean of its divisors is an integer number (14144384674).

Almost surely, 2^28288769347 is an apocalyptic number.

28288769347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28288769347 is an equidigital number, since it uses as much as digits as its factorization.

28288769347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65028096, while the sum is 64.

The spelling of 28288769347 in words is "twenty-eight billion, two hundred eighty-eight million, seven hundred sixty-nine thousand, three hundred forty-seven".