445123034465 has 4 divisors (see below), whose sum is σ = 534147641364. Its totient is φ = 356098427568.

The previous prime is 445123034459. The next prime is 445123034479. The reversal of 445123034465 is 564430321544.

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 289280471104 + 155842563361 = 537848^2 + 394769^2 .

It is a cyclic number.

It is not a de Polignac number, because 445123034465 - 2¹² = 445123030369 is a prime.

It is a super-2 number, since 2×445123034465² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44512303442 + ... + 44512303451.

It is an arithmetic number, because the mean of its divisors is an integer number (133536910341).

Almost surely, 2^445123034465 is an apocalyptic number.

It is an amenable number.

445123034465 is a deficient number, since it is larger than the sum of its proper divisors (89024606899).

445123034465 is an equidigital number, since it uses as much as digits as its factorization.

445123034465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89024606898.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 445123034465 in words is "four hundred forty-five billion, one hundred twenty-three million, thirty-four thousand, four hundred sixty-five".