745344855 has 64 divisors (see below), whose sum is σ = 1421107200. Its totient is φ = 369308160.

The previous prime is 745344779. The next prime is 745344911. The reversal of 745344855 is 558443547.

745344855 is a `hidden beast` number, since 74 + 534 + 48 + 5 + 5 = 666.

It is not a de Polignac number, because 745344855 - 2⁸ = 745344599 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 745344855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179250 + ... + 183360.

It is an arithmetic number, because the mean of its divisors is an integer number (22204800).

Almost surely, 2^745344855 is an apocalyptic number.

745344855 is a deficient number, since it is larger than the sum of its proper divisors (675762345).

745344855 is a wasteful number, since it uses less digits than its factorization.

745344855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221 (or 4215 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 45.

The square root of 745344855 is about 27301.0046518439. The cubic root of 745344855 is about 906.6766249417.

The spelling of 745344855 in words is "seven hundred forty-five million, three hundred forty-four thousand, eight hundred fifty-five".