998727590522 has 32 divisors (see below), whose sum is σ = 1537813465344. Its totient is φ = 486319680000.

The previous prime is 998727590501. The next prime is 998727590533. The reversal of 998727590522 is 225095727899.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5720522 + ... + 5892522.

It is an arithmetic number, because the mean of its divisors is an integer number (48056670792).

Almost surely, 2^998727590522 is an apocalyptic number.

998727590522 is a deficient number, since it is larger than the sum of its proper divisors (539085874822).

998727590522 is a wasteful number, since it uses less digits than its factorization.

998727590522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172574.

The product of its (nonzero) digits is 57153600, while the sum is 65.

The spelling of 998727590522 in words is "nine hundred ninety-eight billion, seven hundred twenty-seven million, five hundred ninety thousand, five hundred twenty-two".