68417133405 has 16 divisors (see below), whose sum is σ = 109556513280. Its totient is φ = 36459437888.

The previous prime is 68417133397. The next prime is 68417133431. The reversal of 68417133405 is 50433171486.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68417133405 - 2³ = 68417133397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837197 + ... + 1874066.

It is an arithmetic number, because the mean of its divisors is an integer number (6847282080).

Almost surely, 2^68417133405 is an apocalyptic number.

It is an amenable number.

68417133405 is a deficient number, since it is larger than the sum of its proper divisors (41139379875).

68417133405 is a wasteful number, since it uses less digits than its factorization.

68417133405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712500.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 68417133405 in words is "sixty-eight billion, four hundred seventeen million, one hundred thirty-three thousand, four hundred five".