43476880005 has 90 divisors (see below), whose sum is σ = 84498618006. Its totient is φ = 21377146752.

The previous prime is 43476880001. The next prime is 43476880021. The reversal of 43476880005 is 50008867434.

It can be written as a sum of positive squares in 9 ways, for example, as 25370755524 + 18106124481 = 159282^2 + 134559^2 .

It is not a de Polignac number, because 43476880005 - 2² = 43476880001 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43476880001) 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 89 ways as a sum of consecutive naturals, for example, 54550267 + ... + 54551063.

Almost surely, 2^43476880005 is an apocalyptic number.

43476880005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43476880005 is a deficient number, since it is larger than the sum of its proper divisors (41021738001).

43476880005 is an frugal number, since it uses more digits than its factorization.

43476880005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

Multiplying 43476880005 by its sum of digits (45), we get a square (1956459600225 = 1398735²).

43476880005 divided by its sum of digits (45) gives a square (966152889 = 31083²).

The spelling of 43476880005 in words is "forty-three billion, four hundred seventy-six million, eight hundred eighty thousand, five".