9645315738 has 16 divisors (see below), whose sum is σ = 20425374720. Its totient is φ = 3025981376.

The previous prime is 9645315703. The next prime is 9645315763. The reversal of 9645315738 is 8375135469.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 47280858 + ... + 47281061.

It is an arithmetic number, because the mean of its divisors is an integer number (1276585920).

Almost surely, 2^9645315738 is an apocalyptic number.

9645315738 is an abundant number, since it is smaller than the sum of its proper divisors (10780058982).

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

9645315738 is a wasteful number, since it uses less digits than its factorization.

9645315738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94561941.

The product of its digits is 2721600, while the sum is 51.

The square root of 9645315738 is about 98210.5683620658. The cubic root of 9645315738 is about 2128.6559984361.

The spelling of 9645315738 in words is "nine billion, six hundred forty-five million, three hundred fifteen thousand, seven hundred thirty-eight".