9646115957 has 2 divisors, whose sum is σ = 9646115958. Its totient is φ = 9646115956.

The previous prime is 9646115951. The next prime is 9646115987. The reversal of 9646115957 is 7595116469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4957427281 + 4688688676 = 70409^2 + 68474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9646115957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9646115899 and 9646115908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9646115951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4823057978 + 4823057979.

It is an arithmetic number, because the mean of its divisors is an integer number (4823057979).

Almost surely, 2^9646115957 is an apocalyptic number.

It is an amenable number.

9646115957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9646115957 is an equidigital number, since it uses as much as digits as its factorization.

9646115957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 53.

The square root of 9646115957 is about 98214.6422739502. The cubic root of 9646115957 is about 2128.7148644499.

The spelling of 9646115957 in words is "nine billion, six hundred forty-six million, one hundred fifteen thousand, nine hundred fifty-seven".