34405667687 has 4 divisors (see below), whose sum is σ = 34407073416. Its totient is φ = 34404261960.

The previous prime is 34405667683. The next prime is 34405667689. The reversal of 34405667687 is 78676650443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78676650443 = 881 ⋅89303803.

It is a cyclic number.

It is not a de Polignac number, because 34405667687 - 2² = 34405667683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34405667683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665489 + ... + 715322.

It is an arithmetic number, because the mean of its divisors is an integer number (8601768354).

Almost surely, 2^34405667687 is an apocalyptic number.

34405667687 is a deficient number, since it is larger than the sum of its proper divisors (1405729).

34405667687 is a wasteful number, since it uses less digits than its factorization.

34405667687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405728.

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 34405667687 in words is "thirty-four billion, four hundred five million, six hundred sixty-seven thousand, six hundred eighty-seven".