28446267446251 has 2 divisors, whose sum is σ = 28446267446252. Its totient is φ = 28446267446250.

The previous prime is 28446267446189. The next prime is 28446267446263. The reversal of 28446267446251 is 15264476264482.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28446267446251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28446267446251.

It is not a weakly prime, because it can be changed into another prime (28446267446291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14223133723125 + 14223133723126.

It is an arithmetic number, because the mean of its divisors is an integer number (14223133723126).

Almost surely, 2^{28446267446251} is an apocalyptic number.

28446267446251 is a deficient number, since it is larger than the sum of its proper divisors (1).

28446267446251 is an equidigital number, since it uses as much as digits as its factorization.

28446267446251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123863040, while the sum is 61.

The spelling of 28446267446251 in words is "twenty-eight trillion, four hundred forty-six billion, two hundred sixty-seven million, four hundred forty-six thousand, two hundred fifty-one".