9663794157 has 16 divisors (see below), whose sum is σ = 13187958080. Its totient is φ = 6291153792.

The previous prime is 9663794141. The next prime is 9663794159. The reversal of 9663794157 is 7514973669.

It is a happy number.

It is not a de Polignac number, because 9663794157 - 2⁴ = 9663794141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9663794097 and 9663794106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9663794159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772569 + ... + 784977.

It is an arithmetic number, because the mean of its divisors is an integer number (824247380).

Almost surely, 2^9663794157 is an apocalyptic number.

It is an amenable number.

9663794157 is a deficient number, since it is larger than the sum of its proper divisors (3524163923).

9663794157 is a wasteful number, since it uses less digits than its factorization.

9663794157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492.

The product of its digits is 8573040, while the sum is 57.

The square root of 9663794157 is about 98304.5988598702. The cubic root of 9663794157 is about 2130.0144853431.

The spelling of 9663794157 in words is "nine billion, six hundred sixty-three million, seven hundred ninety-four thousand, one hundred fifty-seven".