1089241521969 has 4 divisors (see below), whose sum is σ = 1452322029296. Its totient is φ = 726161014644.

The previous prime is 1089241521931. The next prime is 1089241521971. The reversal of 1089241521969 is 9691251429801.

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 not a de Polignac number, because 1089241521969 - 2¹¹ = 1089241519921 is a prime.

It is a super-2 number, since 2×1089241521969² (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 (1089241521469) 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, 181540253659 + ... + 181540253664.

It is an arithmetic number, because the mean of its divisors is an integer number (363080507324).

Almost surely, 2^{1089241521969} is an apocalyptic number.

It is an amenable number.

1089241521969 is a deficient number, since it is larger than the sum of its proper divisors (363080507327).

1089241521969 is an equidigital number, since it uses as much as digits as its factorization.

1089241521969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363080507326.

The product of its (nonzero) digits is 2799360, while the sum is 57.

The spelling of 1089241521969 in words is "one trillion, eighty-nine billion, two hundred forty-one million, five hundred twenty-one thousand, nine hundred sixty-nine".