43264284156449 has 2 divisors, whose sum is σ = 43264284156450. Its totient is φ = 43264284156448.

The previous prime is 43264284156407. The next prime is 43264284156461. The reversal of 43264284156449 is 94465148246234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27776399390224 + 15487884766225 = 5270332^2 + 3935465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43264284156449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43264284156391 and 43264284156400.

It is not a weakly prime, because it can be changed into another prime (43264284056449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21632142078224 + 21632142078225.

It is an arithmetic number, because the mean of its divisors is an integer number (21632142078225).

Almost surely, 2^{43264284156449} is an apocalyptic number.

It is an amenable number.

43264284156449 is a deficient number, since it is larger than the sum of its proper divisors (1).

43264284156449 is an equidigital number, since it uses as much as digits as its factorization.

43264284156449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 159252480, while the sum is 62.

The spelling of 43264284156449 in words is "forty-three trillion, two hundred sixty-four billion, two hundred eighty-four million, one hundred fifty-six thousand, four hundred forty-nine".