67696199172899 has 16 divisors (see below), whose sum is σ = 74786032320000. Its totient is φ = 60762321940320.

The previous prime is 67696199172881. The next prime is 67696199172941. The reversal of 67696199172899 is 99827199169676.

It is a Cunningham number, because it is equal to 8227770²-1.

It is not a de Polignac number, because 67696199172899 - 2⁴⁰ = 66596687545123 is a prime.

It is a super-2 number, since 2×67696199172899² (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 (67696199172829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90131492 + ... + 90879470.

It is an arithmetic number, because the mean of its divisors is an integer number (4674127020000).

Almost surely, 2^{67696199172899} is an apocalyptic number.

67696199172899 is a deficient number, since it is larger than the sum of its proper divisors (7089833147101).

67696199172899 is a wasteful number, since it uses less digits than its factorization.

67696199172899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852218.

The product of its digits is 9999593856, while the sum is 89.

The spelling of 67696199172899 in words is "sixty-seven trillion, six hundred ninety-six billion, one hundred ninety-nine million, one hundred seventy-two thousand, eight hundred ninety-nine".