28133533662 has 64 divisors (see below), whose sum is σ = 63829624320. Its totient is φ = 8195071104.

The previous prime is 28133533657. The next prime is 28133533717. The reversal of 28133533662 is 26633533182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2375668 + ... + 2387480.

It is an arithmetic number, because the mean of its divisors is an integer number (997337880).

Almost surely, 2^28133533662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28133533662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31914812160).

28133533662 is an abundant number, since it is smaller than the sum of its proper divisors (35696090658).

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

28133533662 is a wasteful number, since it uses less digits than its factorization.

28133533662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457.

The product of its digits is 466560, while the sum is 42.

The spelling of 28133533662 in words is "twenty-eight billion, one hundred thirty-three million, five hundred thirty-three thousand, six hundred sixty-two".