990482644853 has 4 divisors (see below), whose sum is σ = 1066673617548. Its totient is φ = 914291672160.

The previous prime is 990482644793. The next prime is 990482644903. The reversal of 990482644853 is 358446284099.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 491761380049 + 498721264804 = 701257^2 + 706202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990482644853 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 (990482644553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38095486328 + ... + 38095486353.

It is an arithmetic number, because the mean of its divisors is an integer number (266668404387).

Almost surely, 2^990482644853 is an apocalyptic number.

It is an amenable number.

990482644853 is a deficient number, since it is larger than the sum of its proper divisors (76190972695).

990482644853 is a wasteful number, since it uses less digits than its factorization.

990482644853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76190972694.

The product of its (nonzero) digits is 59719680, while the sum is 62.

The spelling of 990482644853 in words is "nine hundred ninety billion, four hundred eighty-two million, six hundred forty-four thousand, eight hundred fifty-three".