1085127377447 has 2 divisors, whose sum is σ = 1085127377448. Its totient is φ = 1085127377446.

The previous prime is 1085127377429. The next prime is 1085127377533. The reversal of 1085127377447 is 7447737215801.

1085127377447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7447737215801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1085127377447 - 2¹⁰ = 1085127376423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1085127377392 and 1085127377401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085127377947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542563688723 + 542563688724.

It is an arithmetic number, because the mean of its divisors is an integer number (542563688724).

Almost surely, 2^{1085127377447} is an apocalyptic number.

1085127377447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085127377447 is an equidigital number, since it uses as much as digits as its factorization.

1085127377447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9219840, while the sum is 56.

The spelling of 1085127377447 in words is "one trillion, eighty-five billion, one hundred twenty-seven million, three hundred seventy-seven thousand, four hundred forty-seven".