28150615168 has 64 divisors (see below), whose sum is σ = 60451009920. Its totient is φ = 12980597760.

The previous prime is 28150615159. The next prime is 28150615177. The reversal of 28150615168 is 86151605182.

It is an interprime number because it is at equal distance from previous prime (28150615159) and next prime (28150615177).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941321 + ... + 1955767.

It is an arithmetic number, because the mean of its divisors is an integer number (944547030).

Almost surely, 2^28150615168 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 28150615168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30225504960).

28150615168 is an abundant number, since it is smaller than the sum of its proper divisors (32300394752).

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

28150615168 is a wasteful number, since it uses less digits than its factorization.

28150615168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15645 (or 15633 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 28150615168 in words is "twenty-eight billion, one hundred fifty million, six hundred fifteen thousand, one hundred sixty-eight".