90999968263 has 2 divisors, whose sum is σ = 90999968264. Its totient is φ = 90999968262.

The previous prime is 90999968243. The next prime is 90999968273. The reversal of 90999968263 is 36286999909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90999968263 - 2¹⁷ = 90999837191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90999968192 and 90999968201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90999968243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45499984131 + 45499984132.

It is an arithmetic number, because the mean of its divisors is an integer number (45499984132).

Almost surely, 2^90999968263 is an apocalyptic number.

90999968263 is a deficient number, since it is larger than the sum of its proper divisors (1).

90999968263 is an equidigital number, since it uses as much as digits as its factorization.

90999968263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102036672, while the sum is 70.

The spelling of 90999968263 in words is "ninety billion, nine hundred ninety-nine million, nine hundred sixty-eight thousand, two hundred sixty-three".