9609139657 has 8 divisors (see below), whose sum is σ = 10682120960. Its totient is φ = 8583846480.

The previous prime is 9609139643. The next prime is 9609139681. The reversal of 9609139657 is 7569319069.

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

It is a cyclic number.

It is not a de Polignac number, because 9609139657 - 2¹⁹ = 9608615369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9609139598 and 9609139607.

It is not an unprimeable number, because it can be changed into a prime (9609139637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11921607 + ... + 11922412.

It is an arithmetic number, because the mean of its divisors is an integer number (1335265120).

Almost surely, 2^9609139657 is an apocalyptic number.

It is an amenable number.

9609139657 is a deficient number, since it is larger than the sum of its proper divisors (1072981303).

9609139657 is a wasteful number, since it uses less digits than its factorization.

9609139657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23844063.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The square root of 9609139657 is about 98026.2192324074. The cubic root of 9609139657 is about 2125.9913921331.

The spelling of 9609139657 in words is "nine billion, six hundred nine million, one hundred thirty-nine thousand, six hundred fifty-seven".