9857866796176 has 225 divisors, whose sum is σ = 22670709176409. Its totient is φ = 4152272431104.

The previous prime is 9857866796149. The next prime is 9857866796201. The reversal of 9857866796176 is 6716976687589.

The square root of 9857866796176 is 3139724.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2388446611600 + 7469420184576 = 1545460^2 + 2733024^2 .

It is a super-2 number, since 2×9857866796176² (a number of 27 digits) contains 22 as substring.

Its product of digits (11522165760) is a multiple of the sum of its prime factors (588).

It is a junction number, because it is equal to n+sod(n) for n = 9857866796093 and 9857866796102.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 51077029936 + ... + 51077030128.

Almost surely, 2^{9857866796176} is an apocalyptic number.

9857866796176 is the 3139724-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9857866796176

9857866796176 is an abundant number, since it is smaller than the sum of its proper divisors (12812842380233).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9857866796176 is an frugal number, since it uses more digits than its factorization.

9857866796176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 285 counting only the distinct ones).

The product of its digits is 11522165760, while the sum is 85.

The spelling of 9857866796176 in words is "nine trillion, eight hundred fifty-seven billion, eight hundred sixty-six million, seven hundred ninety-six thousand, one hundred seventy-six".