1047445193287 has 2 divisors, whose sum is σ = 1047445193288. Its totient is φ = 1047445193286.

The previous prime is 1047445193279. The next prime is 1047445193309. The reversal of 1047445193287 is 7823915447401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1047445193287 - 2³ = 1047445193279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047445193987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523722596643 + 523722596644.

It is an arithmetic number, because the mean of its divisors is an integer number (523722596644).

Almost surely, 2^{1047445193287} is an apocalyptic number.

1047445193287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047445193287 is an equidigital number, since it uses as much as digits as its factorization.

1047445193287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 1047445193287 in words is "one trillion, forty-seven billion, four hundred forty-five million, one hundred ninety-three thousand, two hundred eighty-seven".