1155037844989 has 8 divisors (see below), whose sum is σ = 1327417796160. Its totient is φ = 984501530016.

The previous prime is 1155037844971. The next prime is 1155037845001. The reversal of 1155037844989 is 9894487305511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155037844989 - 2³⁵ = 1120678106621 is a prime.

It is a super-2 number, since 2×1155037844989² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155037844989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155037844929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460907704 + ... + 460910209.

It is an arithmetic number, because the mean of its divisors is an integer number (165927224520).

Almost surely, 2^{1155037844989} is an apocalyptic number.

It is an amenable number.

1155037844989 is a deficient number, since it is larger than the sum of its proper divisors (172379951171).

1155037844989 is an equidigital number, since it uses as much as digits as its factorization.

1155037844989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921818099.

The product of its (nonzero) digits is 43545600, while the sum is 64.

The spelling of 1155037844989 in words is "one trillion, one hundred fifty-five billion, thirty-seven million, eight hundred forty-four thousand, nine hundred eighty-nine".