43364545920 has 384 divisors, whose sum is σ = 161309491200. Its totient is φ = 10703278080.

The previous prime is 43364545883. The next prime is 43364545949. The reversal of 43364545920 is 2954546334.

43364545920 is a `hidden beast` number, since 4 + 3 + 3 + 6 + 4 + 54 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4101601 + ... + 4112159.

It is an arithmetic number, because the mean of its divisors is an integer number (420076800).

Almost surely, 2^43364545920 is an apocalyptic number.

43364545920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43364545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80654745600).

43364545920 is an abundant number, since it is smaller than the sum of its proper divisors (117944945280).

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

43364545920 is a wasteful number, since it uses less digits than its factorization.

43364545920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638 (or 10623 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 43364545920 in words is "forty-three billion, three hundred sixty-four million, five hundred forty-five thousand, nine hundred twenty".