68843844615 has 32 divisors (see below), whose sum is σ = 135569419776. Its totient is φ = 29050588800.

The previous prime is 68843844593. The next prime is 68843844689. The reversal of 68843844615 is 51644834886.

It is not a de Polignac number, because 68843844615 - 2⁵ = 68843844583 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25216161 + ... + 25218890.

It is an arithmetic number, because the mean of its divisors is an integer number (4236544368).

Almost surely, 2^68843844615 is an apocalyptic number.

68843844615 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68843844615 is a deficient number, since it is larger than the sum of its proper divisors (66725575161).

68843844615 is a wasteful number, since it uses less digits than its factorization.

68843844615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50435079.

The product of its digits is 17694720, while the sum is 57.

The spelling of 68843844615 in words is "sixty-eight billion, eight hundred forty-three million, eight hundred forty-four thousand, six hundred fifteen".