1174561747984 has 45 divisors (see below), whose sum is σ = 2330237554749. Its totient is φ = 573532142400.

The previous prime is 1174561747967. The next prime is 1174561747987. The reversal of 1174561747984 is 4897471654711.

It is a happy number.

The square root of 1174561747984 is 1083772.

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., 724589107984 + 449972640000 = 851228^2 + 670800^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1174561747987) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 186405634 + ... + 186411934.

Almost surely, 2^{1174561747984} is an apocalyptic number.

1174561747984 is the 1083772-nd square number.

It is an amenable number.

1174561747984 is a deficient number, since it is larger than the sum of its proper divisors (1155675806765).

1174561747984 is an frugal number, since it uses more digits than its factorization.

1174561747984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696 (or 6346 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 64.

Multiplying 1174561747984 by its sum of digits (64), we get a square (75171951870976 = 8670176²).

The spelling of 1174561747984 in words is "one trillion, one hundred seventy-four billion, five hundred sixty-one million, seven hundred forty-seven thousand, nine hundred eighty-four".