745545545547 has 16 divisors (see below), whose sum is σ = 1084446273792. Its totient is φ = 451838956320.

The previous prime is 745545545539. The next prime is 745545545597.

745545545547 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 745545545547 - 2³ = 745545545539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745545545597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2836473 + ... + 3088149.

It is an arithmetic number, because the mean of its divisors is an integer number (67777892112).

Almost surely, 2^745545545547 is an apocalyptic number.

745545545547 is a deficient number, since it is larger than the sum of its proper divisors (338900728245).

745545545547 is a wasteful number, since it uses less digits than its factorization.

745545545547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341458.

The product of its digits is 196000000, while the sum is 60.

The spelling of 745545545547 in words is "seven hundred forty-five billion, five hundred forty-five million, five hundred forty-five thousand, five hundred forty-seven".