43521405485 has 8 divisors (see below), whose sum is σ = 52227680280. Its totient is φ = 34815795264.

The previous prime is 43521405479. The next prime is 43521405523. The reversal of 43521405485 is 58450412534.

It can be written as a sum of positive squares in 4 ways, for example, as 5836501609 + 37684903876 = 76397^2 + 194126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43521405485 - 2⁴ = 43521405469 is a prime.

It is a super-2 number, since 2×43521405485² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8462 + ... + 295151.

It is an arithmetic number, because the mean of its divisors is an integer number (6528460035).

Almost surely, 2^43521405485 is an apocalyptic number.

It is an amenable number.

43521405485 is a deficient number, since it is larger than the sum of its proper divisors (8706274795).

43521405485 is a wasteful number, since it uses less digits than its factorization.

43521405485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332287.

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 43521405485 in words is "forty-three billion, five hundred twenty-one million, four hundred five thousand, four hundred eighty-five".