34680021686 has 4 divisors (see below), whose sum is σ = 52020032532. Its totient is φ = 17340010842.

The previous prime is 34680021659. The next prime is 34680021689. The reversal of 34680021686 is 68612008643.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34680021689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8670005420 + ... + 8670005423.

It is an arithmetic number, because the mean of its divisors is an integer number (13005008133).

Almost surely, 2^34680021686 is an apocalyptic number.

34680021686 is a deficient number, since it is larger than the sum of its proper divisors (17340010846).

34680021686 is a wasteful number, since it uses less digits than its factorization.

34680021686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340010845.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 34680021686 in words is "thirty-four billion, six hundred eighty million, twenty-one thousand, six hundred eighty-six".