1150078221889 has 9 divisors (see below), whose sum is σ = 1213815972033. Its totient is φ = 1089528485652.

The previous prime is 1150078221883. The next prime is 1150078221893. The reversal of 1150078221889 is 9881228700511.

The square root of 1150078221889 is 1072417.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1150078221889 - 2²¹ = 1150076124737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150078221883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20347702 + ... + 20404144.

It is an arithmetic number, because the mean of its divisors is an integer number (134868441337).

Almost surely, 2^{1150078221889} is an apocalyptic number.

1150078221889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1150078221889 is the 1072417-th square number.

1150078221889 is the 536209-th centered octagonal number.

It is an amenable number.

1150078221889 is a deficient number, since it is larger than the sum of its proper divisors (63737750144).

1150078221889 is an frugal number, since it uses more digits than its factorization.

1150078221889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112924 (or 56462 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 52.

The spelling of 1150078221889 in words is "one trillion, one hundred fifty billion, seventy-eight million, two hundred twenty-one thousand, eight hundred eighty-nine".