745243342544 has 40 divisors (see below), whose sum is σ = 1501209749760. Its totient is φ = 358007328000.

The previous prime is 745243342453. The next prime is 745243342553. The reversal of 745243342544 is 445243342547.

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 7 ways as a sum of consecutive naturals, for example, 5335757 + ... + 5473644.

It is an arithmetic number, because the mean of its divisors is an integer number (37530243744).

Almost surely, 2^745243342544 is an apocalyptic number.

It is an amenable number.

745243342544 is an abundant number, since it is smaller than the sum of its proper divisors (755966407216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745243342544 is a wasteful number, since it uses less digits than its factorization.

745243342544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809579 (or 10809573 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 47.

The spelling of 745243342544 in words is "seven hundred forty-five billion, two hundred forty-three million, three hundred forty-two thousand, five hundred forty-four".