67931315631793 has 16 divisors (see below), whose sum is σ = 72686679811200. Its totient is φ = 63367874478720.

The previous prime is 67931315631791. The next prime is 67931315631869. The reversal of 67931315631793 is 39713651313976.

It is a cyclic number.

It is not a de Polignac number, because 67931315631793 - 2¹ = 67931315631791 is a prime.

It is a super-2 number, since 2×67931315631793² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67931315631791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277222923 + ... + 277467856.

It is an arithmetic number, because the mean of its divisors is an integer number (4542917488200).

Almost surely, 2^{67931315631793} is an apocalyptic number.

It is an amenable number.

67931315631793 is a deficient number, since it is larger than the sum of its proper divisors (4755364179407).

67931315631793 is a wasteful number, since it uses less digits than its factorization.

67931315631793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554690952.

The product of its digits is 57868020, while the sum is 64.

The spelling of 67931315631793 in words is "sixty-seven trillion, nine hundred thirty-one billion, three hundred fifteen million, six hundred thirty-one thousand, seven hundred ninety-three".