90883878907 has 2 divisors, whose sum is σ = 90883878908. Its totient is φ = 90883878906.

The previous prime is 90883878901. The next prime is 90883878941. The reversal of 90883878907 is 70987838809.

It is a weak prime.

It is an emirp because it is prime and its reverse (70987838809) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90883878907 - 2²⁷ = 90749661179 is a prime.

It is not a weakly prime, because it can be changed into another prime (90883878901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45441939453 + 45441939454.

It is an arithmetic number, because the mean of its divisors is an integer number (45441939454).

Almost surely, 2^90883878907 is an apocalyptic number.

90883878907 is a deficient number, since it is larger than the sum of its proper divisors (1).

90883878907 is an equidigital number, since it uses as much as digits as its factorization.

90883878907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48771072, while the sum is 67.

The spelling of 90883878907 in words is "ninety billion, eight hundred eighty-three million, eight hundred seventy-eight thousand, nine hundred seven".