745330443552 has 36 divisors (see below), whose sum is σ = 2119533449670. Its totient is φ = 248443481088.

The previous prime is 745330443503. The next prime is 745330443553. The reversal of 745330443552 is 255344033547.

It is a happy number.

745330443552 is a `hidden beast` number, since 7 + 4 + 53 + 3 + 0 + 4 + 43 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 582053029776 + 163277413776 = 762924^2 + 404076^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 745330443498 and 745330443507.

It is not an unprimeable number, because it can be changed into a prime (745330443553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1293976177 + ... + 1293976752.

Almost surely, 2^745330443552 is an apocalyptic number.

745330443552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

745330443552 is an abundant number, since it is smaller than the sum of its proper divisors (1374203006118).

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

745330443552 is a wasteful number, since it uses less digits than its factorization.

745330443552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587952945 (or 2587952934 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 45.

The spelling of 745330443552 in words is "seven hundred forty-five billion, three hundred thirty million, four hundred forty-three thousand, five hundred fifty-two".