67917792069 has 12 divisors (see below), whose sum is σ = 98268921036. Its totient is φ = 45202169472.

The previous prime is 67917792067. The next prime is 67917792071. The reversal of 67917792069 is 96029771976.

67917792069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (67917792067) and next prime (67917792071).

It can be written as a sum of positive squares in 2 ways, for example, as 49846367169 + 18071424900 = 223263^2 + 134430^2 .

It is not a de Polignac number, because 67917792069 - 2¹ = 67917792067 is a prime.

It is a super-2 number, since 2×67917792069² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67917791997 and 67917792015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67917792067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6357582 + ... + 6368255.

It is an arithmetic number, because the mean of its divisors is an integer number (8189076753).

Almost surely, 2^67917792069 is an apocalyptic number.

It is an amenable number.

67917792069 is a deficient number, since it is larger than the sum of its proper divisors (30351128967).

67917792069 is a wasteful number, since it uses less digits than its factorization.

67917792069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12726436 (or 12726433 counting only the distinct ones).

The product of its (nonzero) digits is 18003384, while the sum is 63.

The spelling of 67917792069 in words is "sixty-seven billion, nine hundred seventeen million, seven hundred ninety-two thousand, sixty-nine".