43021245680820 has 192 divisors, whose sum is σ = 146015945671680. Its totient is φ = 10429075382400.

The previous prime is 43021245680779. The next prime is 43021245680893. The reversal of 43021245680820 is 2808654212034.

43021245680820 is a `hidden beast` number, since 4 + 3 + 0 + 2 + 1 + 2 + 4 + 568 + 0 + 82 + 0 = 666.

43021245680820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238478055 + ... + 238658385.

It is an arithmetic number, because the mean of its divisors is an integer number (760499717040).

Almost surely, 2^{43021245680820} is an apocalyptic number.

It is an amenable number.

43021245680820 is an abundant number, since it is smaller than the sum of its proper divisors (102994699990860).

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

43021245680820 is a wasteful number, since it uses less digits than its factorization.

43021245680820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220523 (or 220515 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

Adding to 43021245680820 its reverse (2808654212034), we get a palindrome (45829899892854).

The spelling of 43021245680820 in words is "forty-three trillion, twenty-one billion, two hundred forty-five million, six hundred eighty thousand, eight hundred twenty".