43454204653633 has 2 divisors, whose sum is σ = 43454204653634. Its totient is φ = 43454204653632.

The previous prime is 43454204653583. The next prime is 43454204653661. The reversal of 43454204653633 is 33635640245434.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25462287564289 + 17991917089344 = 5046017^2 + 4241688^2 .

It is a cyclic number.

It is not a de Polignac number, because 43454204653633 - 2²¹ = 43454202556481 is a prime.

It is not a weakly prime, because it can be changed into another prime (43454204663633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21727102326816 + 21727102326817.

It is an arithmetic number, because the mean of its divisors is an integer number (21727102326817).

Almost surely, 2^{43454204653633} is an apocalyptic number.

It is an amenable number.

43454204653633 is a deficient number, since it is larger than the sum of its proper divisors (1).

43454204653633 is an equidigital number, since it uses as much as digits as its factorization.

43454204653633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37324800, while the sum is 52.

The spelling of 43454204653633 in words is "forty-three trillion, four hundred fifty-four billion, two hundred four million, six hundred fifty-three thousand, six hundred thirty-three".