43668864140 has 96 divisors (see below), whose sum is σ = 102963522816. Its totient is φ = 15420061440.

The previous prime is 43668864139. The next prime is 43668864157. The reversal of 43668864140 is 4146886634.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1623239 + ... + 1649921.

It is an arithmetic number, because the mean of its divisors is an integer number (1072536696).

Almost surely, 2^43668864140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43668864140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51481761408).

43668864140 is an abundant number, since it is smaller than the sum of its proper divisors (59294658676).

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

43668864140 is a wasteful number, since it uses less digits than its factorization.

43668864140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26919 (or 26917 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 43668864140 in words is "forty-three billion, six hundred sixty-eight million, eight hundred sixty-four thousand, one hundred forty".