67398499469 has 16 divisors (see below), whose sum is σ = 80271168000. Its totient is φ = 56540976912.

The previous prime is 67398499459. The next prime is 67398499507. The reversal of 67398499469 is 96499489376.

It is not a de Polignac number, because 67398499469 - 2¹⁶ = 67398433933 is a prime.

It is a super-2 number, since 2×67398499469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67398499396 and 67398499405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67398499459) 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, 2074274 + ... + 2106515.

It is an arithmetic number, because the mean of its divisors is an integer number (5016948000).

Almost surely, 2^67398499469 is an apocalyptic number.

It is an amenable number.

67398499469 is a deficient number, since it is larger than the sum of its proper divisors (12872668531).

67398499469 is an equidigital number, since it uses as much as digits as its factorization.

67398499469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180857 (or 4180843 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 74.

The spelling of 67398499469 in words is "sixty-seven billion, three hundred ninety-eight million, four hundred ninety-nine thousand, four hundred sixty-nine".