43675648693 has 2 divisors, whose sum is σ = 43675648694. Its totient is φ = 43675648692.

The previous prime is 43675648663. The next prime is 43675648733. The reversal of 43675648693 is 39684657634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31386374244 + 12289274449 = 177162^2 + 110857^2 .

It is a cyclic number.

It is not a de Polignac number, because 43675648693 - 2¹⁷ = 43675517621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43675648603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21837824346 + 21837824347.

It is an arithmetic number, because the mean of its divisors is an integer number (21837824347).

Almost surely, 2^43675648693 is an apocalyptic number.

It is an amenable number.

43675648693 is a deficient number, since it is larger than the sum of its proper divisors (1).

43675648693 is an equidigital number, since it uses as much as digits as its factorization.

43675648693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 61.

The spelling of 43675648693 in words is "forty-three billion, six hundred seventy-five million, six hundred forty-eight thousand, six hundred ninety-three".