745023628045 has 4 divisors (see below), whose sum is σ = 894028353660. Its totient is φ = 596018902432.

The previous prime is 745023628007. The next prime is 745023628051. The reversal of 745023628045 is 540826320547.

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 303359709961 + 441663918084 = 550781^2 + 664578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745023628045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745023627986 and 745023628004.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 74502362800 + ... + 74502362809.

It is an arithmetic number, because the mean of its divisors is an integer number (223507088415).

Almost surely, 2^745023628045 is an apocalyptic number.

It is an amenable number.

745023628045 is a deficient number, since it is larger than the sum of its proper divisors (149004725615).

745023628045 is a wasteful number, since it uses less digits than its factorization.

745023628045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149004725614.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 745023628045 in words is "seven hundred forty-five billion, twenty-three million, six hundred twenty-eight thousand, forty-five".