1085012727689 has 4 divisors (see below), whose sum is σ = 1183650248400. Its totient is φ = 986375206980.

The previous prime is 1085012727679. The next prime is 1085012727697. The reversal of 1085012727689 is 9867272105801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1085012727689 - 2²⁴ = 1084995950473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085012727679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49318760339 + ... + 49318760360.

It is an arithmetic number, because the mean of its divisors is an integer number (295912562100).

Almost surely, 2^{1085012727689} is an apocalyptic number.

It is an amenable number.

1085012727689 is a deficient number, since it is larger than the sum of its proper divisors (98637520711).

1085012727689 is an equidigital number, since it uses as much as digits as its factorization.

1085012727689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98637520710.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 1085012727689 in words is "one trillion, eighty-five billion, twelve million, seven hundred twenty-seven thousand, six hundred eighty-nine".