28701958068 has 192 divisors, whose sum is σ = 92606976000. Its totient is φ = 7500947328.

The previous prime is 28701958027. The next prime is 28701958091. The reversal of 28701958068 is 86085910782.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 382105 + ... + 451007.

It is an arithmetic number, because the mean of its divisors is an integer number (482328000).

Almost surely, 2^28701958068 is an apocalyptic number.

28701958068 is a gapful number since it is divisible by the number (28) 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 28701958068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46303488000).

28701958068 is an abundant number, since it is smaller than the sum of its proper divisors (63905017932).

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

28701958068 is a wasteful number, since it uses less digits than its factorization.

28701958068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68971 (or 68963 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 28701958068 in words is "twenty-eight billion, seven hundred one million, nine hundred fifty-eight thousand, sixty-eight".