28619423712 has 192 divisors, whose sum is σ = 91262142720. Its totient is φ = 8653478400.

The previous prime is 28619423689. The next prime is 28619423713. The reversal of 28619423712 is 21732491682.

28619423712 is a `hidden beast` number, since 2 + 8 + 619 + 4 + 23 + 7 + 1 + 2 = 666.

It is a super-3 number, since 3×28619423712³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28619423713) 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, 4663398 + ... + 4669530.

It is an arithmetic number, because the mean of its divisors is an integer number (475323660).

Almost surely, 2^28619423712 is an apocalyptic number.

28619423712 is a gapful number since it is divisible by the number (22) 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 28619423712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45631071360).

28619423712 is an abundant number, since it is smaller than the sum of its proper divisors (62642719008).

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

28619423712 is a wasteful number, since it uses less digits than its factorization.

28619423712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654 (or 6640 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 28619423712 in words is "twenty-eight billion, six hundred nineteen million, four hundred twenty-three thousand, seven hundred twelve".