28871946373 has 2 divisors, whose sum is σ = 28871946374. Its totient is φ = 28871946372.

The previous prime is 28871946371. The next prime is 28871946401. The reversal of 28871946373 is 37364917882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24230658244 + 4641288129 = 155662^2 + 68127^2 .

It is a cyclic number.

It is not a de Polignac number, because 28871946373 - 2¹ = 28871946371 is a prime.

Together with 28871946371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28871946371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14435973186 + 14435973187.

It is an arithmetic number, because the mean of its divisors is an integer number (14435973187).

Almost surely, 2^28871946373 is an apocalyptic number.

It is an amenable number.

28871946373 is a deficient number, since it is larger than the sum of its proper divisors (1).

28871946373 is an equidigital number, since it uses as much as digits as its factorization.

28871946373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 58.

The spelling of 28871946373 in words is "twenty-eight billion, eight hundred seventy-one million, nine hundred forty-six thousand, three hundred seventy-three".