43898064163 has 4 divisors (see below), whose sum is σ = 43899633000. Its totient is φ = 43896495328.

The previous prime is 43898064157. The next prime is 43898064181. The reversal of 43898064163 is 36146089834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36146089834 = 2 ⋅18073044917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43898064163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43898064163.

It is not an unprimeable number, because it can be changed into a prime (43898464163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741670 + ... + 798667.

It is an arithmetic number, because the mean of its divisors is an integer number (10974908250).

Almost surely, 2^43898064163 is an apocalyptic number.

43898064163 is a deficient number, since it is larger than the sum of its proper divisors (1568837).

43898064163 is a wasteful number, since it uses less digits than its factorization.

43898064163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568836.

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

The spelling of 43898064163 in words is "forty-three billion, eight hundred ninety-eight million, sixty-four thousand, one hundred sixty-three".