33681642422 has 4 divisors (see below), whose sum is σ = 50522463636. Its totient is φ = 16840821210.

The previous prime is 33681642389. The next prime is 33681642433. The reversal of 33681642422 is 22424618633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22424618633 = 373 ⋅60119621.

It is a super-2 number, since 2×33681642422² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33681642422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8420410604 + ... + 8420410607.

It is an arithmetic number, because the mean of its divisors is an integer number (12630615909).

Almost surely, 2^33681642422 is an apocalyptic number.

33681642422 is a deficient number, since it is larger than the sum of its proper divisors (16840821214).

33681642422 is a wasteful number, since it uses less digits than its factorization.

33681642422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16840821213.

The product of its digits is 331776, while the sum is 41.

The spelling of 33681642422 in words is "thirty-three billion, six hundred eighty-one million, six hundred forty-two thousand, four hundred twenty-two".