33447474672 has 20 divisors (see below), whose sum is σ = 86405976360. Its totient is φ = 11149158208.

The previous prime is 33447474661. The next prime is 33447474673. The reversal of 33447474672 is 27647474433.

It is a super-2 number, since 2×33447474672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33447474673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348411147 + ... + 348411242.

It is an arithmetic number, because the mean of its divisors is an integer number (4320298818).

Almost surely, 2^33447474672 is an apocalyptic number.

It is an amenable number.

33447474672 is an abundant number, since it is smaller than the sum of its proper divisors (52958501688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33447474672 is a wasteful number, since it uses less digits than its factorization.

33447474672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696822400 (or 696822394 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 51.

The spelling of 33447474672 in words is "thirty-three billion, four hundred forty-seven million, four hundred seventy-four thousand, six hundred seventy-two".