990486522863 has 2 divisors, whose sum is σ = 990486522864. Its totient is φ = 990486522862.

The previous prime is 990486522847. The next prime is 990486522871. The reversal of 990486522863 is 368225684099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 990486522863 - 2⁴ = 990486522847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 990486522796 and 990486522805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990486122863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495243261431 + 495243261432.

It is an arithmetic number, because the mean of its divisors is an integer number (495243261432).

Almost surely, 2^990486522863 is an apocalyptic number.

990486522863 is a deficient number, since it is larger than the sum of its proper divisors (1).

990486522863 is an equidigital number, since it uses as much as digits as its factorization.

990486522863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 990486522863 in words is "nine hundred ninety billion, four hundred eighty-six million, five hundred twenty-two thousand, eight hundred sixty-three".