28946963249 has 2 divisors, whose sum is σ = 28946963250. Its totient is φ = 28946963248.

The previous prime is 28946963207. The next prime is 28946963261. The reversal of 28946963249 is 94236964982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16726766224 + 12220197025 = 129332^2 + 110545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28946963249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28946963191 and 28946963200.

It is not a weakly prime, because it can be changed into another prime (28946966249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14473481624 + 14473481625.

It is an arithmetic number, because the mean of its divisors is an integer number (14473481625).

Almost surely, 2^28946963249 is an apocalyptic number.

It is an amenable number.

28946963249 is a deficient number, since it is larger than the sum of its proper divisors (1).

28946963249 is an equidigital number, since it uses as much as digits as its factorization.

28946963249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 62.

The spelling of 28946963249 in words is "twenty-eight billion, nine hundred forty-six million, nine hundred sixty-three thousand, two hundred forty-nine".