1452143646561 has 32 divisors (see below), whose sum is σ = 2017832342400. Its totient is φ = 928107499520.

The previous prime is 1452143646433. The next prime is 1452143646587. The reversal of 1452143646561 is 1656463412541.

It is a cyclic number.

It is not a de Polignac number, because 1452143646561 - 2⁷ = 1452143646433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1452143646561.

It is not an unprimeable number, because it can be changed into a prime (1452143646061) 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 31 ways as a sum of consecutive naturals, for example, 18895165 + ... + 18971861.

It is an arithmetic number, because the mean of its divisors is an integer number (63057260700).

Almost surely, 2^{1452143646561} is an apocalyptic number.

It is an amenable number.

1452143646561 is a deficient number, since it is larger than the sum of its proper divisors (565688695839).

1452143646561 is a wasteful number, since it uses less digits than its factorization.

1452143646561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79409.

The product of its digits is 2073600, while the sum is 48.

The spelling of 1452143646561 in words is "one trillion, four hundred fifty-two billion, one hundred forty-three million, six hundred forty-six thousand, five hundred sixty-one".