445747238773 has 4 divisors (see below), whose sum is σ = 445757159340. Its totient is φ = 445737318208.

The previous prime is 445747238707. The next prime is 445747238779. The reversal of 445747238773 is 377832747544.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20112345124 + 425634893649 = 141818^2 + 652407^2 .

It is a cyclic number.

It is not a de Polignac number, because 445747238773 - 2³⁷ = 308308285301 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 (445747238779) 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, 4892578 + ... + 4982851.

It is an arithmetic number, because the mean of its divisors is an integer number (111439289835).

Almost surely, 2^445747238773 is an apocalyptic number.

It is an amenable number.

445747238773 is a deficient number, since it is larger than the sum of its proper divisors (9920567).

445747238773 is an equidigital number, since it uses as much as digits as its factorization.

445747238773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920566.

The product of its digits is 110638080, while the sum is 61.

The spelling of 445747238773 in words is "four hundred forty-five billion, seven hundred forty-seven million, two hundred thirty-eight thousand, seven hundred seventy-three".