33368134987 has 4 divisors (see below), whose sum is σ = 36401601816. Its totient is φ = 30334668160.

The previous prime is 33368134979. The next prime is 33368135023. The reversal of 33368134987 is 78943186333.

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

It is a cyclic number.

It is not a de Polignac number, because 33368134987 - 2³ = 33368134979 is a prime.

It is a super-2 number, since 2×33368134987² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33368134967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516733398 + ... + 1516733419.

It is an arithmetic number, because the mean of its divisors is an integer number (9100400454).

Almost surely, 2^33368134987 is an apocalyptic number.

33368134987 is a deficient number, since it is larger than the sum of its proper divisors (3033466829).

33368134987 is a wasteful number, since it uses less digits than its factorization.

33368134987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033466828.

The product of its digits is 7838208, while the sum is 55.

The spelling of 33368134987 in words is "thirty-three billion, three hundred sixty-eight million, one hundred thirty-four thousand, nine hundred eighty-seven".