43106193649 has 2 divisors, whose sum is σ = 43106193650. Its totient is φ = 43106193648.

The previous prime is 43106193643. The next prime is 43106193707. The reversal of 43106193649 is 94639160134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41613144049 + 1493049600 = 203993^2 + 38640^2 .

It is a cyclic number.

It is not a de Polignac number, because 43106193649 - 2¹⁷ = 43106062577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43106193599 and 43106193608.

It is not a weakly prime, because it can be changed into another prime (43106193643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21553096824 + 21553096825.

It is an arithmetic number, because the mean of its divisors is an integer number (21553096825).

Almost surely, 2^43106193649 is an apocalyptic number.

It is an amenable number.

43106193649 is a deficient number, since it is larger than the sum of its proper divisors (1).

43106193649 is an equidigital number, since it uses as much as digits as its factorization.

43106193649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 43106193649 in words is "forty-three billion, one hundred six million, one hundred ninety-three thousand, six hundred forty-nine".