9786616804157 has 4 divisors (see below), whose sum is σ = 10362300145596. Its totient is φ = 9210933462720.

The previous prime is 9786616804109. The next prime is 9786616804163. The reversal of 9786616804157 is 7514086166879.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6213707838361 + 3572908965796 = 2492731^2 + 1890214^2 .

It is a cyclic number.

It is not a de Polignac number, because 9786616804157 - 2⁶ = 9786616804093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9786616804057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287841670694 + ... + 287841670727.

It is an arithmetic number, because the mean of its divisors is an integer number (2590575036399).

Almost surely, 2^{9786616804157} is an apocalyptic number.

It is an amenable number.

9786616804157 is a deficient number, since it is larger than the sum of its proper divisors (575683341439).

9786616804157 is a wasteful number, since it uses less digits than its factorization.

9786616804157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575683341438.

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 9786616804157 in words is "nine trillion, seven hundred eighty-six billion, six hundred sixteen million, eight hundred four thousand, one hundred fifty-seven".