9946921207876 has 27 divisors (see below), whose sum is σ = 18491491452567. Its totient is φ = 4680853635840.

The previous prime is 9946921207787. The next prime is 9946921207907. The reversal of 9946921207876 is 6787021296499.

The square root of 9946921207876 is 3153874.

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

It can be written as a sum of positive squares in 4 ways, for example, as 40945522500 + 9905975685376 = 202350^2 + 3147376^2 .

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 107185336 + ... + 107278096.

Almost surely, 2^{9946921207876} is an apocalyptic number.

9946921207876 is the 3153874-th square number.

It is an amenable number.

9946921207876 is a deficient number, since it is larger than the sum of its proper divisors (8544570244691).

9946921207876 is an frugal number, since it uses more digits than its factorization.

9946921207876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185560 (or 92780 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 9946921207876 in words is "nine trillion, nine hundred forty-six billion, nine hundred twenty-one million, two hundred seven thousand, eight hundred seventy-six".