28154152444032 has 128 divisors (see below), whose sum is σ = 83102589336000. Its totient is φ = 9383730757632.

The previous prime is 28154152444021. The next prime is 28154152444081. The reversal of 28154152444032 is 23044425145182.

28154152444032 is a `hidden beast` number, since 2 + 8 + 1 + 54 + 1 + 524 + 4 + 40 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32819808 + ... + 33666720.

Almost surely, 2^{28154152444032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28154152444032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41551294668000).

28154152444032 is an abundant number, since it is smaller than the sum of its proper divisors (54948436891968).

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

28154152444032 is an equidigital number, since it uses as much as digits as its factorization.

28154152444032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856555 (or 856537 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 28154152444032 in words is "twenty-eight trillion, one hundred fifty-four billion, one hundred fifty-two million, four hundred forty-four thousand, thirty-two".