33231064894 has 8 divisors (see below), whose sum is σ = 50330545200. Its totient is φ = 16454216496.

The previous prime is 33231064873. The next prime is 33231064897. The reversal of 33231064894 is 49846013233.

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

It is a super-2 number, since 2×33231064894² (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 33231064894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33231064897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80657719 + ... + 80658130.

It is an arithmetic number, because the mean of its divisors is an integer number (6291318150).

Almost surely, 2^33231064894 is an apocalyptic number.

33231064894 is a deficient number, since it is larger than the sum of its proper divisors (17099480306).

33231064894 is a wasteful number, since it uses less digits than its factorization.

33231064894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161315954.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 33231064894 in words is "thirty-three billion, two hundred thirty-one million, sixty-four thousand, eight hundred ninety-four".