1071881559943 has 2 divisors, whose sum is σ = 1071881559944. Its totient is φ = 1071881559942.

The previous prime is 1071881559899. The next prime is 1071881559971. The reversal of 1071881559943 is 3499551881701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1071881559943 - 2⁹ = 1071881559431 is a prime.

It is a super-2 number, since 2×1071881559943² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071881559143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535940779971 + 535940779972.

It is an arithmetic number, because the mean of its divisors is an integer number (535940779972).

Almost surely, 2^{1071881559943} is an apocalyptic number.

1071881559943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071881559943 is an equidigital number, since it uses as much as digits as its factorization.

1071881559943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 61.

The spelling of 1071881559943 in words is "one trillion, seventy-one billion, eight hundred eighty-one million, five hundred fifty-nine thousand, nine hundred forty-three".