67811033097 has 6 divisors (see below), whose sum is σ = 97949270042. Its totient is φ = 45207355392.

The previous prime is 67811033063. The next prime is 67811033107. The reversal of 67811033097 is 79033011876.

It can be written as a sum of positive squares in only one way, i.e., 55217480256 + 12593552841 = 234984^2 + 112221^2 .

It is not a de Polignac number, because 67811033097 - 2²⁰ = 67809984521 is a prime.

It is a super-2 number, since 2×67811033097² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (67811033047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3767279608 + ... + 3767279625.

Almost surely, 2^67811033097 is an apocalyptic number.

It is an amenable number.

67811033097 is a deficient number, since it is larger than the sum of its proper divisors (30138236945).

67811033097 is a wasteful number, since it uses less digits than its factorization.

67811033097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534559239 (or 7534559236 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 67811033097 in words is "sixty-seven billion, eight hundred eleven million, thirty-three thousand, ninety-seven".