999997849322 has 4 divisors (see below), whose sum is σ = 1499996773986. Its totient is φ = 499998924660.

The previous prime is 999997849313. The next prime is 999997849373. The reversal of 999997849322 is 223948799999.

It is a happy number.

999997849322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223948799999 = 8647 ⋅25899017.

It can be written as a sum of positive squares in only one way, i.e., 590424728881 + 409573120441 = 768391^2 + 639979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249999462329 + ... + 249999462332.

Almost surely, 2^999997849322 is an apocalyptic number.

999997849322 is a deficient number, since it is larger than the sum of its proper divisors (499998924664).

999997849322 is a wasteful number, since it uses less digits than its factorization.

999997849322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499998924663.

The product of its digits is 1428513408, while the sum is 80.

The spelling of 999997849322 in words is "nine hundred ninety-nine billion, nine hundred ninety-seven million, eight hundred forty-nine thousand, three hundred twenty-two".