43494918226 has 4 divisors (see below), whose sum is σ = 65242377342. Its totient is φ = 21747459112.

The previous prime is 43494918221. The next prime is 43494918323. The reversal of 43494918226 is 62281949434.

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

It can be written as a sum of positive squares in only one way, i.e., 40274469225 + 3220449001 = 200685^2 + 56749^2 .

It is a super-2 number, since 2×43494918226² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43494918221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10873729555 + ... + 10873729558.

Almost surely, 2^43494918226 is an apocalyptic number.

43494918226 is a deficient number, since it is larger than the sum of its proper divisors (21747459116).

43494918226 is a wasteful number, since it uses less digits than its factorization.

43494918226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21747459115.

The product of its digits is 2985984, while the sum is 52.

The spelling of 43494918226 in words is "forty-three billion, four hundred ninety-four million, nine hundred eighteen thousand, two hundred twenty-six".