28901969279 has 2 divisors, whose sum is σ = 28901969280. Its totient is φ = 28901969278.

The previous prime is 28901969227. The next prime is 28901969281. The reversal of 28901969279 is 97296910982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28901969279 is a prime.

Together with 28901969281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28901969779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14450984639 + 14450984640.

It is an arithmetic number, because the mean of its divisors is an integer number (14450984640).

Almost surely, 2^28901969279 is an apocalyptic number.

28901969279 is a deficient number, since it is larger than the sum of its proper divisors (1).

28901969279 is an equidigital number, since it uses as much as digits as its factorization.

28901969279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The spelling of 28901969279 in words is "twenty-eight billion, nine hundred one million, nine hundred sixty-nine thousand, two hundred seventy-nine".