1194150643984 has 15 divisors (see below), whose sum is σ = 2313675341733. Its totient is φ = 597073136448.

The previous prime is 1194150643981. The next prime is 1194150643997. The reversal of 1194150643984 is 4893460514911.

The square root of 1194150643984 is 1092772.

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

It can be written as a sum of positive squares in only one way, i.e., 944278627600 + 249872016384 = 971740^2 + 499872^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194150643981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4234492 + ... + 4507684.

Almost surely, 2^{1194150643984} is an apocalyptic number.

1194150643984 is the 1092772-nd square number.

It is an amenable number.

1194150643984 is a deficient number, since it is larger than the sum of its proper divisors (1119524697749).

1194150643984 is an frugal number, since it uses more digits than its factorization.

1194150643984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546394 (or 273195 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 1194150643984 in words is "one trillion, one hundred ninety-four billion, one hundred fifty million, six hundred forty-three thousand, nine hundred eighty-four".