33686854069 has 4 divisors (see below), whose sum is σ = 36749295360. Its totient is φ = 30624412780.

The previous prime is 33686854057. The next prime is 33686854087. The reversal of 33686854069 is 96045868633.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33686854069 is a prime.

It is a super-2 number, since 2×33686854069² (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 (33686854039) 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, 1531220629 + ... + 1531220650.

It is an arithmetic number, because the mean of its divisors is an integer number (9187323840).

Almost surely, 2^33686854069 is an apocalyptic number.

It is an amenable number.

33686854069 is a deficient number, since it is larger than the sum of its proper divisors (3062441291).

33686854069 is a wasteful number, since it uses less digits than its factorization.

33686854069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062441290.

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 33686854069 in words is "thirty-three billion, six hundred eighty-six million, eight hundred fifty-four thousand, sixty-nine".