745716617548 has 24 divisors (see below), whose sum is σ = 1491453475232. Its totient is φ = 319588498944.

The previous prime is 745716617543. The next prime is 745716617587. The reversal of 745716617548 is 845716617547.

It is a happy number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2757436 + ... + 3015772.

Almost surely, 2^745716617548 is an apocalyptic number.

It is an amenable number.

745716617548 is an abundant number, since it is smaller than the sum of its proper divisors (745736857684).

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

745716617548 is a wasteful number, since it uses less digits than its factorization.

745716617548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361441 (or 361439 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 61.

Subtracting 745716617548 from its reverse (845716617547), we obtain a palindrome (99999999999).

The spelling of 745716617548 in words is "seven hundred forty-five billion, seven hundred sixteen million, six hundred seventeen thousand, five hundred forty-eight".