28379668212 has 288 divisors, whose sum is σ = 88792704000. Its totient is φ = 7461974016.

The previous prime is 28379668201. The next prime is 28379668217. The reversal of 28379668212 is 21286697382.

28379668212 is a `hidden beast` number, since 283 + 7 + 96 + 68 + 212 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28379668217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63206164 + ... + 63206612.

It is an arithmetic number, because the mean of its divisors is an integer number (308308000).

Almost surely, 2^28379668212 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 28379668212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44396352000).

28379668212 is an abundant number, since it is smaller than the sum of its proper divisors (60413035788).

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

28379668212 is a wasteful number, since it uses less digits than its factorization.

28379668212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 830 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 28379668212 in words is "twenty-eight billion, three hundred seventy-nine million, six hundred sixty-eight thousand, two hundred twelve".