43251441118920 has 192 divisors, whose sum is σ = 148839539022720. Its totient is φ = 10854993979392.

The previous prime is 43251441118909. The next prime is 43251441118927. The reversal of 43251441118920 is 2981114415234.

It is a happy number.

43251441118920 is a `hidden beast` number, since 4 + 3 + 2 + 5 + 1 + 441 + 1 + 189 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (43251441118927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382486309 + ... + 382599371.

It is an arithmetic number, because the mean of its divisors is an integer number (775205932410).

Almost surely, 2^{43251441118920} is an apocalyptic number.

43251441118920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43251441118920 is an abundant number, since it is smaller than the sum of its proper divisors (105588097903800).

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

43251441118920 is a wasteful number, since it uses less digits than its factorization.

43251441118920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175604 (or 175597 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 43251441118920 in words is "forty-three trillion, two hundred fifty-one billion, four hundred forty-one million, one hundred eighteen thousand, nine hundred twenty".