1145868188867 has 2 divisors, whose sum is σ = 1145868188868. Its totient is φ = 1145868188866.

The previous prime is 1145868188863. The next prime is 1145868188879. The reversal of 1145868188867 is 7688818685411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145868188867 - 2² = 1145868188863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145868188867.

It is not a weakly prime, because it can be changed into another prime (1145868188863) 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, 572934094433 + 572934094434.

It is an arithmetic number, because the mean of its divisors is an integer number (572934094434).

Almost surely, 2^{1145868188867} is an apocalyptic number.

1145868188867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145868188867 is an equidigital number, since it uses as much as digits as its factorization.

1145868188867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165150720, while the sum is 71.

The spelling of 1145868188867 in words is "one trillion, one hundred forty-five billion, eight hundred sixty-eight million, one hundred eighty-eight thousand, eight hundred sixty-seven".