7873286160861 has 32 divisors (see below), whose sum is σ = 13134970736640. Its totient is φ = 4617763138800.

The previous prime is 7873286160821. The next prime is 7873286160881. The reversal of 7873286160861 is 1680616823787.

7873286160861 is a `hidden beast` number, since 7 + 8 + 7 + 3 + 2 + 8 + 616 + 0 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 7873286160861 - 2⁶ = 7873286160797 is a prime.

It is a super-2 number, since 2×7873286160861² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7873286160821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427561455 + ... + 427579868.

It is an arithmetic number, because the mean of its divisors is an integer number (410467835520).

Almost surely, 2^{7873286160861} is an apocalyptic number.

It is an amenable number.

7873286160861 is a deficient number, since it is larger than the sum of its proper divisors (5261684575779).

7873286160861 is a wasteful number, since it uses less digits than its factorization.

7873286160861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855141374 (or 855141368 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 7873286160861 in words is "seven trillion, eight hundred seventy-three billion, two hundred eighty-six million, one hundred sixty thousand, eight hundred sixty-one".