28013738087 has 2 divisors, whose sum is σ = 28013738088. Its totient is φ = 28013738086.

The previous prime is 28013737993. The next prime is 28013738089. The reversal of 28013738087 is 78083731082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28013738087 - 2²⁸ = 27745302631 is a prime.

Together with 28013738089, 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 (28013738089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14006869043 + 14006869044.

It is an arithmetic number, because the mean of its divisors is an integer number (14006869044).

Almost surely, 2^28013738087 is an apocalyptic number.

28013738087 is a deficient number, since it is larger than the sum of its proper divisors (1).

28013738087 is an equidigital number, since it uses as much as digits as its factorization.

28013738087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28013738087 in words is "twenty-eight billion, thirteen million, seven hundred thirty-eight thousand, eighty-seven".