1085500446721 has 4 divisors (see below), whose sum is σ = 1142632049200. Its totient is φ = 1028368844244.

The previous prime is 1085500446713. The next prime is 1085500446739. The reversal of 1085500446721 is 1276440055801.

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 1085500446721 - 2³ = 1085500446713 is a prime.

It is a super-2 number, since 2×1085500446721² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085500446421) 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, 28565801211 + ... + 28565801248.

It is an arithmetic number, because the mean of its divisors is an integer number (285658012300).

Almost surely, 2^{1085500446721} is an apocalyptic number.

It is an amenable number.

1085500446721 is a deficient number, since it is larger than the sum of its proper divisors (57131602479).

1085500446721 is an equidigital number, since it uses as much as digits as its factorization.

1085500446721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57131602478.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 1085500446721 in words is "one trillion, eighty-five billion, five hundred million, four hundred forty-six thousand, seven hundred twenty-one".