990595546423 has 6 divisors (see below), whose sum is σ = 1132112205384. Its totient is φ = 849079639836.

The previous prime is 990595546399. The next prime is 990595546439. The reversal of 990595546423 is 324645595099.

It is not a de Polignac number, because 990595546423 - 2²⁹ = 990058675511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990595546723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2445190 + ... + 2821372.

It is an arithmetic number, because the mean of its divisors is an integer number (188685367564).

Almost surely, 2^990595546423 is an apocalyptic number.

990595546423 is a deficient number, since it is larger than the sum of its proper divisors (141516658961).

990595546423 is an frugal number, since it uses more digits than its factorization.

990595546423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752373 (or 376190 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 61.

The spelling of 990595546423 in words is "nine hundred ninety billion, five hundred ninety-five million, five hundred forty-six thousand, four hundred twenty-three".