43026046821 has 12 divisors (see below), whose sum is σ = 62789444172. Its totient is φ = 28388318976.

The previous prime is 43026046807. The next prime is 43026046837. The reversal of 43026046821 is 12864062034.

43026046821 is a `hidden beast` number, since 43 + 0 + 2 + 604 + 6 + 8 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30734998596 + 12291048225 = 175314^2 + 110865^2 .

It is not a de Polignac number, because 43026046821 - 2⁹ = 43026046309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43026046841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24641766 + ... + 24643511.

It is an arithmetic number, because the mean of its divisors is an integer number (5232453681).

Almost surely, 2^43026046821 is an apocalyptic number.

It is an amenable number.

43026046821 is a deficient number, since it is larger than the sum of its proper divisors (19763397351).

43026046821 is a wasteful number, since it uses less digits than its factorization.

43026046821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49285380 (or 49285377 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 43026046821 in words is "forty-three billion, twenty-six million, forty-six thousand, eight hundred twenty-one".