43604116541 has 2 divisors, whose sum is σ = 43604116542. Its totient is φ = 43604116540.

The previous prime is 43604116537. The next prime is 43604116547. The reversal of 43604116541 is 14561140634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41675589316 + 1928527225 = 204146^2 + 43915^2 .

It is a cyclic number.

It is not a de Polignac number, because 43604116541 - 2² = 43604116537 is a prime.

It is a super-2 number, since 2×43604116541² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43604116547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21802058270 + 21802058271.

It is an arithmetic number, because the mean of its divisors is an integer number (21802058271).

Almost surely, 2^43604116541 is an apocalyptic number.

It is an amenable number.

43604116541 is a deficient number, since it is larger than the sum of its proper divisors (1).

43604116541 is an equidigital number, since it uses as much as digits as its factorization.

43604116541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 43604116541 in words is "forty-three billion, six hundred four million, one hundred sixteen thousand, five hundred forty-one".