43654360416420 has 384 divisors, whose sum is σ = 137753383703040. Its totient is φ = 10255488122880.

The previous prime is 43654360416409. The next prime is 43654360416427. The reversal of 43654360416420 is 2461406345634.

It is a self number, because there is not a number n which added to its sum of digits gives 43654360416420.

It is not an unprimeable number, because it can be changed into a prime (43654360416427) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 685376775 + ... + 685440465.

It is an arithmetic number, because the mean of its divisors is an integer number (358732770060).

Almost surely, 2^{43654360416420} 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 43654360416420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68876691851520).

43654360416420 is an abundant number, since it is smaller than the sum of its proper divisors (94099023286620).

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

43654360416420 is a wasteful number, since it uses less digits than its factorization.

43654360416420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64095 (or 64093 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 43654360416420 in words is "forty-three trillion, six hundred fifty-four billion, three hundred sixty million, four hundred sixteen thousand, four hundred twenty".