1085879887229 has 4 divisors (see below), whose sum is σ = 1120908270720. Its totient is φ = 1050851503740.

The previous prime is 1085879887223. The next prime is 1085879887303. The reversal of 1085879887229 is 9227889785801.

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 a de Polignac number, because none of the positive numbers 2^k-1085879887229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085879887223) 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, 17514191699 + ... + 17514191760.

It is an arithmetic number, because the mean of its divisors is an integer number (280227067680).

Almost surely, 2^{1085879887229} is an apocalyptic number.

It is an amenable number.

1085879887229 is a deficient number, since it is larger than the sum of its proper divisors (35028383491).

1085879887229 is an equidigital number, since it uses as much as digits as its factorization.

1085879887229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35028383490.

The product of its (nonzero) digits is 325140480, while the sum is 74.

The spelling of 1085879887229 in words is "one trillion, eighty-five billion, eight hundred seventy-nine million, eight hundred eighty-seven thousand, two hundred twenty-nine".