9661829074 has 16 divisors (see below), whose sum is σ = 14641090200. Its totient is φ = 4781497600.

The previous prime is 9661829039. The next prime is 9661829081. The reversal of 9661829074 is 4709281669.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8880235225 + 781593849 = 94235^2 + 27957^2 .

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, 811992 + ... + 823804.

Almost surely, 2^9661829074 is an apocalyptic number.

9661829074 is a deficient number, since it is larger than the sum of its proper divisors (4979261126).

9661829074 is a wasteful number, since it uses less digits than its factorization.

9661829074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 9661829074 is about 98294.6034836094. The cubic root of 9661829074 is about 2129.8700997140.

The spelling of 9661829074 in words is "nine billion, six hundred sixty-one million, eight hundred twenty-nine thousand, seventy-four".