43268256816 has 80 divisors (see below), whose sum is σ = 112559462400. Its totient is φ = 14321975040.

The previous prime is 43268256803. The next prime is 43268256841. The reversal of 43268256816 is 61865286234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5616135 + ... + 5623833.

It is an arithmetic number, because the mean of its divisors is an integer number (1406993280).

Almost surely, 2^43268256816 is an apocalyptic number.

It is an amenable number.

43268256816 is an abundant number, since it is smaller than the sum of its proper divisors (69291205584).

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

43268256816 is a wasteful number, since it uses less digits than its factorization.

43268256816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8514 (or 8508 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The spelling of 43268256816 in words is "forty-three billion, two hundred sixty-eight million, two hundred fifty-six thousand, eight hundred sixteen".