1445643046423 has 4 divisors (see below), whose sum is σ = 1445752986048. Its totient is φ = 1445533106800.

The previous prime is 1445643046387. The next prime is 1445643046531. The reversal of 1445643046423 is 3246403465441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1445643046423 - 2⁹ = 1445643045911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445643046823) 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, 54950086 + ... + 54976387.

It is an arithmetic number, because the mean of its divisors is an integer number (361438246512).

Almost surely, 2^{1445643046423} is an apocalyptic number.

1445643046423 is a deficient number, since it is larger than the sum of its proper divisors (109939625).

1445643046423 is a wasteful number, since it uses less digits than its factorization.

1445643046423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109939624.

The product of its (nonzero) digits is 3317760, while the sum is 46.

The spelling of 1445643046423 in words is "one trillion, four hundred forty-five billion, six hundred forty-three million, forty-six thousand, four hundred twenty-three".