28340719002 has 144 divisors (see below), whose sum is σ = 67297321728. Its totient is φ = 8608152960.

The previous prime is 28340718997. The next prime is 28340719003. The reversal of 28340719002 is 20091704382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28340719003) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19776478 + ... + 19777910.

It is an arithmetic number, because the mean of its divisors is an integer number (467342512).

Almost surely, 2^28340719002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28340719002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33648660864).

28340719002 is an abundant number, since it is smaller than the sum of its proper divisors (38956602726).

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

28340719002 is a wasteful number, since it uses less digits than its factorization.

28340719002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 28340719002 in words is "twenty-eight billion, three hundred forty million, seven hundred nineteen thousand, two".