33680087407 has 4 divisors (see below), whose sum is σ = 33696258520. Its totient is φ = 33663916296.

The previous prime is 33680087321. The next prime is 33680087417. The reversal of 33680087407 is 70478008633.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33680087407 is a prime.

It is a super-2 number, since 2×33680087407² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33680087417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8082432 + ... + 8086597.

It is an arithmetic number, because the mean of its divisors is an integer number (8424064630).

Almost surely, 2^33680087407 is an apocalyptic number.

33680087407 is a deficient number, since it is larger than the sum of its proper divisors (16171113).

33680087407 is a wasteful number, since it uses less digits than its factorization.

33680087407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16171112.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 33680087407 in words is "thirty-three billion, six hundred eighty million, eighty-seven thousand, four hundred seven".