68194465 has 8 divisors (see below), whose sum is σ = 82286568. Its totient is φ = 54253440.

The previous prime is 68194453. The next prime is 68194487. The reversal of 68194465 is 56449186.

It can be written as a sum of positive squares in 4 ways, for example, as 3825936 + 64368529 = 1956^2 + 8023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68194465 - 2¹¹ = 68192417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36772 + ... + 38581.

It is an arithmetic number, because the mean of its divisors is an integer number (10285821).

Almost surely, 2^68194465 is an apocalyptic number.

It is an amenable number.

68194465 is a deficient number, since it is larger than the sum of its proper divisors (14092103).

68194465 is a wasteful number, since it uses less digits than its factorization.

68194465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75539.

The product of its digits is 207360, while the sum is 43.

The square root of 68194465 is about 8257.9940058104. The cubic root of 68194465 is about 408.5542276524.

The spelling of 68194465 in words is "sixty-eight million, one hundred ninety-four thousand, four hundred sixty-five".