9689641738 has 8 divisors (see below), whose sum is σ = 16610814432. Its totient is φ = 4152703596.

The previous prime is 9689641721. The next prime is 9689641751. The reversal of 9689641738 is 8371469869.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346058620 + ... + 346058647.

It is an arithmetic number, because the mean of its divisors is an integer number (2076351804).

Almost surely, 2^9689641738 is an apocalyptic number.

9689641738 is a deficient number, since it is larger than the sum of its proper divisors (6921172694).

9689641738 is a wasteful number, since it uses less digits than its factorization.

9689641738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692117276.

The product of its digits is 15676416, while the sum is 61.

The square root of 9689641738 is about 98435.9778637872. The cubic root of 9689641738 is about 2131.9118322281.

The spelling of 9689641738 in words is "nine billion, six hundred eighty-nine million, six hundred forty-one thousand, seven hundred thirty-eight".