28296162864 has 100 divisors (see below), whose sum is σ = 82542645504. Its totient is φ = 9357731712.

The previous prime is 28296162859. The next prime is 28296162871. The reversal of 28296162864 is 46826169282.

28296162864 is a `hidden beast` number, since 2 + 8 + 2 + 9 + 6 + 1 + 628 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28296162864.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78634 + ... + 250550.

Almost surely, 2^28296162864 is an apocalyptic number.

28296162864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28296162864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41271322752).

28296162864 is an abundant number, since it is smaller than the sum of its proper divisors (54246482640).

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

28296162864 is a wasteful number, since it uses less digits than its factorization.

28296162864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172064 (or 172049 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 28296162864 in words is "twenty-eight billion, two hundred ninety-six million, one hundred sixty-two thousand, eight hundred sixty-four".