745805424508547 has 24 divisors (see below), whose sum is σ = 818240675701680. Its totient is φ = 679399316668800.

The previous prime is 745805424508513. The next prime is 745805424508603.

745805424508547 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 745805424508547 - 2¹² = 745805424504451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745805424508247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65921972 + ... + 76402337.

It is an arithmetic number, because the mean of its divisors is an integer number (34093361487570).

Almost surely, 2^{745805424508547} is an apocalyptic number.

745805424508547 is a deficient number, since it is larger than the sum of its proper divisors (72435251193133).

745805424508547 is a wasteful number, since it uses less digits than its factorization.

745805424508547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142324743 (or 142324730 counting only the distinct ones).

The product of its (nonzero) digits is 1003520000, while the sum is 68.

The spelling of 745805424508547 in words is "seven hundred forty-five trillion, eight hundred five billion, four hundred twenty-four million, five hundred eight thousand, five hundred forty-seven".