43868528641 has 8 divisors (see below), whose sum is σ = 50415549120. Its totient is φ = 37391530128.

The previous prime is 43868528623. The next prime is 43868528647. The reversal of 43868528641 is 14682586834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43868528641 - 2⁹ = 43868528129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43868528647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17504146 + ... + 17506651.

It is an arithmetic number, because the mean of its divisors is an integer number (6301943640).

Almost surely, 2^43868528641 is an apocalyptic number.

It is an amenable number.

43868528641 is a deficient number, since it is larger than the sum of its proper divisors (6547020479).

43868528641 is a wasteful number, since it uses less digits than its factorization.

43868528641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010983.

The product of its digits is 8847360, while the sum is 55.

The spelling of 43868528641 in words is "forty-three billion, eight hundred sixty-eight million, five hundred twenty-eight thousand, six hundred forty-one".