28702300000 has 288 divisors, whose sum is σ = 78134686560. Its totient is φ = 10291200000.

The previous prime is 28702299991. The next prime is 28702300009. The reversal of 28702300000 is 320782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28702299991) and next prime (28702300009).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28702300009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106699866 + ... + 106700134.

It is an arithmetic number, because the mean of its divisors is an integer number (271300995).

Almost surely, 2^28702300000 is an apocalyptic number.

28702300000 is a gapful number since it is divisible by the number (20) 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 28702300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39067343280).

28702300000 is an abundant number, since it is smaller than the sum of its proper divisors (49432386560).

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

28702300000 is an equidigital number, since it uses as much as digits as its factorization.

28702300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 28702300000 its reverse (320782), we get a palindrome (28702620782).

The spelling of 28702300000 in words is "twenty-eight billion, seven hundred two million, three hundred thousand".