28360997087 has 2 divisors, whose sum is σ = 28360997088. Its totient is φ = 28360997086.

The previous prime is 28360997081. The next prime is 28360997101. The reversal of 28360997087 is 78079906382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28360997087 - 2⁶ = 28360997023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28360997081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14180498543 + 14180498544.

It is an arithmetic number, because the mean of its divisors is an integer number (14180498544).

Almost surely, 2^28360997087 is an apocalyptic number.

28360997087 is a deficient number, since it is larger than the sum of its proper divisors (1).

28360997087 is an equidigital number, since it uses as much as digits as its factorization.

28360997087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 28360997087 in words is "twenty-eight billion, three hundred sixty million, nine hundred ninety-seven thousand, eighty-seven".