1766452043947 has 2 divisors, whose sum is σ = 1766452043948. Its totient is φ = 1766452043946.

The previous prime is 1766452043911. The next prime is 1766452043953. The reversal of 1766452043947 is 7493402546671.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1766452043947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1766452043891 and 1766452043900.

It is not a weakly prime, because it can be changed into another prime (1766452043977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 883226021973 + 883226021974.

It is an arithmetic number, because the mean of its divisors is an integer number (883226021974).

Almost surely, 2^{1766452043947} is an apocalyptic number.

1766452043947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1766452043947 is an equidigital number, since it uses as much as digits as its factorization.

1766452043947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 58.

The spelling of 1766452043947 in words is "one trillion, seven hundred sixty-six billion, four hundred fifty-two million, forty-three thousand, nine hundred forty-seven".