745663005 has 48 divisors (see below), whose sum is σ = 1311401520. Its totient is φ = 391910400.

The previous prime is 745663003. The next prime is 745663049. The reversal of 745663005 is 500366547.

It can be written as a sum of positive squares in 8 ways, for example, as 3481956 + 742181049 = 1866^2 + 27243^2 .

It is not a de Polignac number, because 745663005 - 2¹ = 745663003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745663003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1378035 + ... + 1378575.

It is an arithmetic number, because the mean of its divisors is an integer number (27320865).

Almost surely, 2^745663005 is an apocalyptic number.

It is an amenable number.

745663005 is a deficient number, since it is larger than the sum of its proper divisors (565738515).

745663005 is a wasteful number, since it uses less digits than its factorization.

745663005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 745663005 is about 27306.8307388463. The cubic root of 745663005 is about 906.8056113803.

The spelling of 745663005 in words is "seven hundred forty-five million, six hundred sixty-three thousand, five".