28701068064 has 24 divisors (see below), whose sum is σ = 75340303920. Its totient is φ = 9567022656.

The previous prime is 28701068041. The next prime is 28701068101. The reversal of 28701068064 is 46086010782.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149484634 + ... + 149484825.

It is an arithmetic number, because the mean of its divisors is an integer number (3139179330).

Almost surely, 2^28701068064 is an apocalyptic number.

28701068064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28701068064 is an abundant number, since it is smaller than the sum of its proper divisors (46639235856).

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

28701068064 is a wasteful number, since it uses less digits than its factorization.

28701068064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298969472 (or 298969464 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 28701068064 in words is "twenty-eight billion, seven hundred one million, sixty-eight thousand, sixty-four".