745716617547 has 16 divisors (see below), whose sum is σ = 1095418114560. Its totient is φ = 447474716000.

The previous prime is 745716617543. The next prime is 745716617587.

745716617547 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 745716617547 - 2² = 745716617543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745716617543) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 111865347 + ... + 111872012.

It is an arithmetic number, because the mean of its divisors is an integer number (68463632160).

Almost surely, 2^745716617547 is an apocalyptic number.

745716617547 is a deficient number, since it is larger than the sum of its proper divisors (349701497013).

745716617547 is a wasteful number, since it uses less digits than its factorization.

745716617547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223737474.

The product of its digits is 34574400, while the sum is 60.

The spelling of 745716617547 in words is "seven hundred forty-five billion, seven hundred sixteen million, six hundred seventeen thousand, five hundred forty-seven".