34394987906 has 8 divisors (see below), whose sum is σ = 51599156220. Its totient is φ = 17195269168.

The previous prime is 34394987881. The next prime is 34394987917. The reversal of 34394987906 is 60978949343.

It can be written as a sum of positive squares in 2 ways, for example, as 33449117881 + 945870025 = 182891^2 + 30755^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093001 + ... + 1124028.

Almost surely, 2^34394987906 is an apocalyptic number.

34394987906 is a deficient number, since it is larger than the sum of its proper divisors (17204168314).

34394987906 is a wasteful number, since it uses less digits than its factorization.

34394987906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224788.

The product of its (nonzero) digits is 35271936, while the sum is 62.

The spelling of 34394987906 in words is "thirty-four billion, three hundred ninety-four million, nine hundred eighty-seven thousand, nine hundred six".