43106500639 has 2 divisors, whose sum is σ = 43106500640. Its totient is φ = 43106500638.

The previous prime is 43106500621. The next prime is 43106500739. The reversal of 43106500639 is 93600560134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43106500639 - 2¹³ = 43106492447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43106500598 and 43106500607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43106500039) 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, 21553250319 + 21553250320.

It is an arithmetic number, because the mean of its divisors is an integer number (21553250320).

Almost surely, 2^43106500639 is an apocalyptic number.

43106500639 is a deficient number, since it is larger than the sum of its proper divisors (1).

43106500639 is an equidigital number, since it uses as much as digits as its factorization.

43106500639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 43106500639 in words is "forty-three billion, one hundred six million, five hundred thousand, six hundred thirty-nine".