28476774671 has 2 divisors, whose sum is σ = 28476774672. Its totient is φ = 28476774670.

The previous prime is 28476774659. The next prime is 28476774673. The reversal of 28476774671 is 17647767482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28476774671 - 2¹⁴ = 28476758287 is a prime.

Together with 28476774673, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28476774671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28476774673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14238387335 + 14238387336.

It is an arithmetic number, because the mean of its divisors is an integer number (14238387336).

Almost surely, 2^28476774671 is an apocalyptic number.

28476774671 is a deficient number, since it is larger than the sum of its proper divisors (1).

28476774671 is an equidigital number, since it uses as much as digits as its factorization.

28476774671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22127616, while the sum is 59.

The spelling of 28476774671 in words is "twenty-eight billion, four hundred seventy-six million, seven hundred seventy-four thousand, six hundred seventy-one".