16849878226 has 4 divisors (see below), whose sum is σ = 25274817342. Its totient is φ = 8424939112.

The previous prime is 16849878211. The next prime is 16849878233. The reversal of 16849878226 is 62287894861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62287894861 = 31 ⋅2009286931.

It can be written as a sum of positive squares in only one way, i.e., 14125560201 + 2724318025 = 118851^2 + 52195^2 .

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 as a sum of consecutive naturals, namely, 4212469555 + ... + 4212469558.

Almost surely, 2^16849878226 is an apocalyptic number.

16849878226 is a deficient number, since it is larger than the sum of its proper divisors (8424939116).

16849878226 is an equidigital number, since it uses as much as digits as its factorization.

16849878226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424939115.

The product of its digits is 18579456, while the sum is 61.

The spelling of 16849878226 in words is "sixteen billion, eight hundred forty-nine million, eight hundred seventy-eight thousand, two hundred twenty-six".