43553628513 has 6 divisors (see below), whose sum is σ = 62910796754. Its totient is φ = 29035752336.

The previous prime is 43553628491. The next prime is 43553628527. The reversal of 43553628513 is 31582635534.

43553628513 is a `hidden beast` number, since 4 + 3 + 5 + 5 + 3 + 628 + 5 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42398104464 + 1155524049 = 205908^2 + 33993^2 .

It is not a de Polignac number, because 43553628513 - 2¹² = 43553624417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43553628583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2419646020 + ... + 2419646037.

Almost surely, 2^43553628513 is an apocalyptic number.

It is an amenable number.

43553628513 is a deficient number, since it is larger than the sum of its proper divisors (19357168241).

43553628513 is a wasteful number, since it uses less digits than its factorization.

43553628513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839292063 (or 4839292060 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 43553628513 in words is "forty-three billion, five hundred fifty-three million, six hundred twenty-eight thousand, five hundred thirteen".