1452473441561 has 4 divisors (see below), whose sum is σ = 1474152149712. Its totient is φ = 1430794733412.

The previous prime is 1452473441543. The next prime is 1452473441567. The reversal of 1452473441561 is 1651443742541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1452473441561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452473441567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10839353975 + ... + 10839354108.

It is an arithmetic number, because the mean of its divisors is an integer number (368538037428).

Almost surely, 2^{1452473441561} is an apocalyptic number.

It is an amenable number.

1452473441561 is a deficient number, since it is larger than the sum of its proper divisors (21678708151).

1452473441561 is an equidigital number, since it uses as much as digits as its factorization.

1452473441561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21678708150.

The product of its digits is 1612800, while the sum is 47.

The spelling of 1452473441561 in words is "one trillion, four hundred fifty-two billion, four hundred seventy-three million, four hundred forty-one thousand, five hundred sixty-one".