28361030251 has 2 divisors, whose sum is σ = 28361030252. Its totient is φ = 28361030250.

The previous prime is 28361030227. The next prime is 28361030263. The reversal of 28361030251 is 15203016382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28361030251 - 2⁷ = 28361030123 is a prime.

It is not a weakly prime, because it can be changed into another prime (28361030221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14180515125 + 14180515126.

It is an arithmetic number, because the mean of its divisors is an integer number (14180515126).

Almost surely, 2^28361030251 is an apocalyptic number.

28361030251 is a deficient number, since it is larger than the sum of its proper divisors (1).

28361030251 is an equidigital number, since it uses as much as digits as its factorization.

28361030251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 28361030251 in words is "twenty-eight billion, three hundred sixty-one million, thirty thousand, two hundred fifty-one".