9475659649 has 9 divisors (see below), whose sum is σ = 9536694339. Its totient is φ = 9415014960.

The previous prime is 9475659637. The next prime is 9475659673. The reversal of 9475659649 is 9469565749.

It is a happy number.

The square root of 9475659649 is 97343.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 9415209024 = 7775^2 + 97032^2 .

It is not a de Polignac number, because 9475659649 - 2⁵ = 9475659617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9475659679) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30273517 + ... + 30273829.

Almost surely, 2^9475659649 is an apocalyptic number.

9475659649 is the 97343-rd square number.

9475659649 is the 48672-nd centered octagonal number.

It is an amenable number.

9475659649 is a deficient number, since it is larger than the sum of its proper divisors (61034690).

9475659649 is an frugal number, since it uses more digits than its factorization.

9475659649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 624 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 64.

The cubic root of 9475659649 is about 2116.1014480594.

Multiplying 9475659649 by its sum of digits (64), we get a square (606442217536 = 778744²).

It can be divided in two parts, 9475 and 659649, that added together give a square (669124 = 818²).

The spelling of 9475659649 in words is "nine billion, four hundred seventy-five million, six hundred fifty-nine thousand, six hundred forty-nine".