68134633297 has 4 divisors (see below), whose sum is σ = 68143490800. Its totient is φ = 68125775796.

The previous prime is 68134633279. The next prime is 68134633313. The reversal of 68134633297 is 79233643186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68134633297 is a prime.

It is a super-2 number, since 2×68134633297² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68134633247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4417203 + ... + 4432600.

It is an arithmetic number, because the mean of its divisors is an integer number (17035872700).

Almost surely, 2^68134633297 is an apocalyptic number.

It is an amenable number.

68134633297 is a deficient number, since it is larger than the sum of its proper divisors (8857503).

68134633297 is an equidigital number, since it uses as much as digits as its factorization.

68134633297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857502.

The product of its digits is 3919104, while the sum is 52.

The spelling of 68134633297 in words is "sixty-eight billion, one hundred thirty-four million, six hundred thirty-three thousand, two hundred ninety-seven".