1089155030217 has 4 divisors (see below), whose sum is σ = 1452206706960. Its totient is φ = 726103353476.

The previous prime is 1089155030149. The next prime is 1089155030279. The reversal of 1089155030217 is 7120305519801.

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 1089155030217 - 2²⁷ = 1089020812489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089155030417) 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, 181525838367 + ... + 181525838372.

It is an arithmetic number, because the mean of its divisors is an integer number (363051676740).

Almost surely, 2^{1089155030217} is an apocalyptic number.

It is an amenable number.

1089155030217 is a deficient number, since it is larger than the sum of its proper divisors (363051676743).

1089155030217 is an equidigital number, since it uses as much as digits as its factorization.

1089155030217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363051676742.

The product of its (nonzero) digits is 75600, while the sum is 42.

The spelling of 1089155030217 in words is "one trillion, eighty-nine billion, one hundred fifty-five million, thirty thousand, two hundred seventeen".