43621403513 has 8 divisors (see below), whose sum is σ = 43662278760. Its totient is φ = 43580551680.

The previous prime is 43621403491. The next prime is 43621403531. The reversal of 43621403513 is 31530412634.

It can be written as a sum of positive squares in 4 ways, for example, as 1827904 + 43619575609 = 1352^2 + 208853^2 .

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 43621403513 - 2¹⁴ = 43621387129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43621403513.

It is not an unprimeable number, because it can be changed into a prime (43621403713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6854453 + ... + 6860813.

It is an arithmetic number, because the mean of its divisors is an integer number (5457784845).

Almost surely, 2^43621403513 is an apocalyptic number.

It is an amenable number.

43621403513 is a deficient number, since it is larger than the sum of its proper divisors (40875247).

43621403513 is a wasteful number, since it uses less digits than its factorization.

43621403513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 43621403513 in words is "forty-three billion, six hundred twenty-one million, four hundred three thousand, five hundred thirteen".