28356057347 has 2 divisors, whose sum is σ = 28356057348. Its totient is φ = 28356057346.

The previous prime is 28356057329. The next prime is 28356057371. The reversal of 28356057347 is 74375065382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28356057347 - 2⁸ = 28356057091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28356057295 and 28356057304.

It is not a weakly prime, because it can be changed into another prime (28356057047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14178028673 + 14178028674.

It is an arithmetic number, because the mean of its divisors is an integer number (14178028674).

Almost surely, 2^28356057347 is an apocalyptic number.

28356057347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28356057347 is an equidigital number, since it uses as much as digits as its factorization.

28356057347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 28356057347 in words is "twenty-eight billion, three hundred fifty-six million, fifty-seven thousand, three hundred forty-seven".