43409568426 has 16 divisors (see below), whose sum is σ = 99221870784. Its totient is φ = 12402733824.

The previous prime is 43409568403. The next prime is 43409568431. The reversal of 43409568426 is 62486590434.

43409568426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43409568426² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516780535 + ... + 516780618.

It is an arithmetic number, because the mean of its divisors is an integer number (6201366924).

Almost surely, 2^43409568426 is an apocalyptic number.

43409568426 is an abundant number, since it is smaller than the sum of its proper divisors (55812302358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43409568426 is a wasteful number, since it uses less digits than its factorization.

43409568426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033561165.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 43409568426 in words is "forty-three billion, four hundred nine million, five hundred sixty-eight thousand, four hundred twenty-six".