9209810924161 has 4 divisors (see below), whose sum is σ = 9383580941652. Its totient is φ = 9036040906672.

The previous prime is 9209810924143. The next prime is 9209810924173. The reversal of 9209810924161 is 1614290189029.

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 5198126403600 + 4011684520561 = 2279940^2 + 2002919^2 .

It is a cyclic number.

It is not a de Polignac number, because 9209810924161 - 2⁵ = 9209810924129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9209810924099 and 9209810924108.

It is not an unprimeable number, because it can be changed into a prime (9209810924261) 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, 86885008666 + ... + 86885008771.

It is an arithmetic number, because the mean of its divisors is an integer number (2345895235413).

Almost surely, 2^{9209810924161} is an apocalyptic number.

It is an amenable number.

9209810924161 is a deficient number, since it is larger than the sum of its proper divisors (173770017491).

9209810924161 is a wasteful number, since it uses less digits than its factorization.

9209810924161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173770017490.

The product of its (nonzero) digits is 559872, while the sum is 52.

The spelling of 9209810924161 in words is "nine trillion, two hundred nine billion, eight hundred ten million, nine hundred twenty-four thousand, one hundred sixty-one".