998983295449 has 4 divisors (see below), whose sum is σ = 998985389220. Its totient is φ = 998981201680.

The previous prime is 998983295347. The next prime is 998983295461. The reversal of 998983295449 is 944592389899.

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 542962659600 + 456020635849 = 736860^2 + 675293^2 .

It is a cyclic number.

It is not a de Polignac number, because 998983295449 - 2³³ = 990393360857 is a prime.

It is a super-2 number, since 2×998983295449² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998983295549) 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, 56307 + ... + 1414615.

It is an arithmetic number, because the mean of its divisors is an integer number (249746347305).

Almost surely, 2^998983295449 is an apocalyptic number.

It is an amenable number.

998983295449 is a deficient number, since it is larger than the sum of its proper divisors (2093771).

998983295449 is a wasteful number, since it uses less digits than its factorization.

998983295449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093770.

The product of its digits is 1813985280, while the sum is 79.

The spelling of 998983295449 in words is "nine hundred ninety-eight billion, nine hundred eighty-three million, two hundred ninety-five thousand, four hundred forty-nine".