846340170921 has 24 divisors (see below), whose sum is σ = 1398222072000. Its totient is φ = 483245961696.

The previous prime is 846340170911. The next prime is 846340170971. The reversal of 846340170921 is 129071043648.

846340170921 is a `hidden beast` number, since 8 + 4 + 634 + 0 + 1 + 7 + 0 + 9 + 2 + 1 = 666.

It is not a de Polignac number, because 846340170921 - 2¹⁴ = 846340154537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (846340170911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5154546 + ... + 5316203.

It is an arithmetic number, because the mean of its divisors is an integer number (58259253000).

Almost surely, 2^846340170921 is an apocalyptic number.

It is an amenable number.

846340170921 is a deficient number, since it is larger than the sum of its proper divisors (551881901079).

846340170921 is a wasteful number, since it uses less digits than its factorization.

846340170921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10472045 (or 10472042 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 846340170921 in words is "eight hundred forty-six billion, three hundred forty million, one hundred seventy thousand, nine hundred twenty-one".