6868621165 has 16 divisors (see below), whose sum is σ = 9421437312. Its totient is φ = 4709104704.

The previous prime is 6868621159. The next prime is 6868621181. The reversal of 6868621165 is 5611268686.

It is a cyclic number.

It is not a de Polignac number, because 6868621165 - 2²¹ = 6866524013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250042 + ... + 276148.

It is an arithmetic number, because the mean of its divisors is an integer number (588839832).

Almost surely, 2^6868621165 is an apocalyptic number.

It is an amenable number.

6868621165 is a deficient number, since it is larger than the sum of its proper divisors (2552816147).

6868621165 is a wasteful number, since it uses less digits than its factorization.

6868621165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33636.

The product of its digits is 829440, while the sum is 49.

The square root of 6868621165 is about 82877.1450099483. The cubic root of 6868621165 is about 1900.8879658306.

The spelling of 6868621165 in words is "six billion, eight hundred sixty-eight million, six hundred twenty-one thousand, one hundred sixty-five".