33251274642 has 8 divisors (see below), whose sum is σ = 66502549296. Its totient is φ = 11083758212.

The previous prime is 33251274631. The next prime is 33251274713. The reversal of 33251274642 is 24647215233.

It is a sphenic number, since it is the product of 3 distinct primes.

33251274642 is an admirable number.

It is a super-2 number, since 2×33251274642² (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 33251274642.

It is an unprimeable number.

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, 2770939548 + ... + 2770939559.

It is an arithmetic number, because the mean of its divisors is an integer number (8312818662).

Almost surely, 2^33251274642 is an apocalyptic number.

33251274642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33251274642 is a wasteful number, since it uses less digits than its factorization.

33251274642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541879112.

The product of its digits is 241920, while the sum is 39.

Adding to 33251274642 its reverse (24647215233), we get a palindrome (57898489875).

The spelling of 33251274642 in words is "thirty-three billion, two hundred fifty-one million, two hundred seventy-four thousand, six hundred forty-two".