745534563779 has 4 divisors (see below), whose sum is σ = 745698530184. Its totient is φ = 745370597376.

The previous prime is 745534563751. The next prime is 745534563827. The reversal of 745534563779 is 977365435547.

745534563779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977365435547 = 540557 ⋅1808071.

It is a cyclic number.

It is not a de Polignac number, because 745534563779 - 2¹⁶ = 745534498243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745534563749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81976382 + ... + 81985475.

It is an arithmetic number, because the mean of its divisors is an integer number (186424632546).

Almost surely, 2^745534563779 is an apocalyptic number.

745534563779 is a deficient number, since it is larger than the sum of its proper divisors (163966405).

745534563779 is a wasteful number, since it uses less digits than its factorization.

745534563779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163966404.

The product of its digits is 333396000, while the sum is 65.

The spelling of 745534563779 in words is "seven hundred forty-five billion, five hundred thirty-four million, five hundred sixty-three thousand, seven hundred seventy-nine".