9657157394 has 16 divisors (see below), whose sum is σ = 15386857848. Its totient is φ = 4530020352.

The previous prime is 9657157283. The next prime is 9657157399. The reversal of 9657157394 is 4937517569.

9657157394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4252996225 + 5404161169 = 65215^2 + 73513^2 .

It is not an unprimeable number, because it can be changed into a prime (9657157399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443087 + ... + 464370.

Almost surely, 2^9657157394 is an apocalyptic number.

9657157394 is a deficient number, since it is larger than the sum of its proper divisors (5729700454).

9657157394 is a wasteful number, since it uses less digits than its factorization.

9657157394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907789.

The product of its digits is 7144200, while the sum is 56.

The square root of 9657157394 is about 98270.8369456575. The cubic root of 9657157394 is about 2129.5267666664.

The spelling of 9657157394 in words is "nine billion, six hundred fifty-seven million, one hundred fifty-seven thousand, three hundred ninety-four".