745821589538 has 16 divisors (see below), whose sum is σ = 1119805718976. Its totient is φ = 372553162800.

The previous prime is 745821589439. The next prime is 745821589567. The reversal of 745821589538 is 835985128547.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10943195 + ... + 11011137.

It is an arithmetic number, because the mean of its divisors is an integer number (69987857436).

Almost surely, 2^745821589538 is an apocalyptic number.

745821589538 is a deficient number, since it is larger than the sum of its proper divisors (373984129438).

745821589538 is a wasteful number, since it uses less digits than its factorization.

745821589538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73129.

The product of its digits is 96768000, while the sum is 65.

The spelling of 745821589538 in words is "seven hundred forty-five billion, eight hundred twenty-one million, five hundred eighty-nine thousand, five hundred thirty-eight".