745015838449 has 3 divisors (see below), whose sum is σ = 745016701593. Its totient is φ = 745014975306.

The previous prime is 745015838443. The next prime is 745015838503. The reversal of 745015838449 is 944838510547.

The square root of 745015838449 is 863143.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 745015838449 - 2⁷ = 745015838321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745015838393 and 745015838402.

It is not an unprimeable number, because it can be changed into a prime (745015838443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 431572 + ... + 1294714.

It is an arithmetic number, because the mean of its divisors is an integer number (248338900531).

Almost surely, 2^745015838449 is an apocalyptic number.

745015838449 is the 863143-rd square number.

745015838449 is the 431572-nd centered octagonal number.

It is an amenable number.

745015838449 is a deficient number, since it is larger than the sum of its proper divisors (863144).

745015838449 is an frugal number, since it uses more digits than its factorization.

745015838449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726286 (or 863143 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 745015838449 in words is "seven hundred forty-five billion, fifteen million, eight hundred thirty-eight thousand, four hundred forty-nine".