33378857943609 has 32 divisors (see below), whose sum is σ = 47704425120000. Its totient is φ = 20685739751424.

The previous prime is 33378857943569. The next prime is 33378857943679. The reversal of 33378857943609 is 90634975887333.

It is not a de Polignac number, because 33378857943609 - 2²⁴ = 33378841166393 is a prime.

It is a super-2 number, since 2×33378857943609² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33378857943679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170367 + ... + 8172315.

It is an arithmetic number, because the mean of its divisors is an integer number (1490763285000).

Almost surely, 2^{33378857943609} is an apocalyptic number.

It is an amenable number.

33378857943609 is a deficient number, since it is larger than the sum of its proper divisors (14325567176391).

33378857943609 is a wasteful number, since it uses less digits than its factorization.

33378857943609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002977.

The product of its (nonzero) digits is 2469035520, while the sum is 75.

The spelling of 33378857943609 in words is "thirty-three trillion, three hundred seventy-eight billion, eight hundred fifty-seven million, nine hundred forty-three thousand, six hundred nine".