28210479012 has 96 divisors (see below), whose sum is σ = 76093194240. Its totient is φ = 9028363680.

The previous prime is 28210478971. The next prime is 28210479019. The reversal of 28210479012 is 21097401282.

It is a super-2 number, since 2×28210479012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28210479019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392023 + ... + 458369.

It is an arithmetic number, because the mean of its divisors is an integer number (792637440).

Almost surely, 2^28210479012 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 28210479012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38046597120).

28210479012 is an abundant number, since it is smaller than the sum of its proper divisors (47882715228).

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

28210479012 is a wasteful number, since it uses less digits than its factorization.

28210479012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66518 (or 66510 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 28210479012 in words is "twenty-eight billion, two hundred ten million, four hundred seventy-nine thousand, twelve".