43545240645652 has 6 divisors (see below), whose sum is σ = 76204171129898. Its totient is φ = 21772620322824.

The previous prime is 43545240645649. The next prime is 43545240645667. The reversal of 43545240645652 is 25654604254534.

It can be written as a sum of positive squares in only one way, i.e., 39766594517776 + 3778646127876 = 6306076^2 + 1943874^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43545240645593 and 43545240645602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5443155080703 + ... + 5443155080710.

Almost surely, 2^{43545240645652} is an apocalyptic number.

It is an amenable number.

43545240645652 is a deficient number, since it is larger than the sum of its proper divisors (32658930484246).

43545240645652 is a wasteful number, since it uses less digits than its factorization.

43545240645652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886310161417 (or 10886310161415 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 55.

The spelling of 43545240645652 in words is "forty-three trillion, five hundred forty-five billion, two hundred forty million, six hundred forty-five thousand, six hundred fifty-two".