68315591119 has 4 divisors (see below), whose sum is σ = 68336830144. Its totient is φ = 68294352096.

The previous prime is 68315591087. The next prime is 68315591129. The reversal of 68315591119 is 91119551386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68315591119 - 2⁵ = 68315591087 is a prime.

It is a super-2 number, since 2×68315591119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68315591129) 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, 10614687 + ... + 10621120.

It is an arithmetic number, because the mean of its divisors is an integer number (17084207536).

Almost surely, 2^68315591119 is an apocalyptic number.

68315591119 is a deficient number, since it is larger than the sum of its proper divisors (21239025).

68315591119 is a wasteful number, since it uses less digits than its factorization.

68315591119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21239024.

The product of its digits is 291600, while the sum is 49.

The spelling of 68315591119 in words is "sixty-eight billion, three hundred fifteen million, five hundred ninety-one thousand, one hundred nineteen".