68700079449 has 15 divisors (see below), whose sum is σ = 102629568613. Its totient is φ = 45798480324.

The previous prime is 68700079429. The next prime is 68700079501. The reversal of 68700079449 is 94497000786.

It is a happy number.

The square root of 68700079449 is 262107.

It is a perfect power (a square), and thus also a powerful number.

68700079449 is a `hidden beast` number, since 68 + 70 + 0 + 0 + 79 + 449 = 666.

It is not a de Polignac number, because 68700079449 - 2⁵ = 68700079417 is a prime.

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 = 68700079395 and 68700079404.

It is not an unprimeable number, because it can be changed into a prime (68700079429) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2344402 + ... + 2373524.

Almost surely, 2^68700079449 is an apocalyptic number.

68700079449 is the 262107-th square number.

68700079449 is the 131054-th centered octagonal number.

It is an amenable number.

68700079449 is a deficient number, since it is larger than the sum of its proper divisors (33929489164).

68700079449 is an frugal number, since it uses more digits than its factorization.

68700079449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58258 (or 29126 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 68700079449 in words is "sixty-eight billion, seven hundred million, seventy-nine thousand, four hundred forty-nine".