1145473591824 has 45 divisors (see below), whose sum is σ = 3205771065133. Its totient is φ = 381820249536.

The previous prime is 1145473591813. The next prime is 1145473591859. The reversal of 1145473591824 is 4281953745411.

The square root of 1145473591824 is 1070268.

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

1145473591824 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 47 + 3 + 591 + 8 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112404631824 + 1033068960000 = 335268^2 + 1016400^2 .

It is a super-4 number, since 4×1145473591824⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12798622 + ... + 12887810.

Almost surely, 2^{1145473591824} is an apocalyptic number.

1145473591824 is the 1070268-th square number.

It is an amenable number.

1145473591824 is an abundant number, since it is smaller than the sum of its proper divisors (2060297473309).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145473591824 is an frugal number, since it uses more digits than its factorization.

1145473591824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178392 (or 89194 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 1145473591824 in words is "one trillion, one hundred forty-five billion, four hundred seventy-three million, five hundred ninety-one thousand, eight hundred twenty-four".