28607570680 has 64 divisors (see below), whose sum is σ = 69555296160. Its totient is φ = 10526688768.

The previous prime is 28607570669. The next prime is 28607570681. The reversal of 28607570680 is 8607570682.

It is a super-2 number, since 2×28607570680² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28607570681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58479 + ... + 246241.

Almost surely, 2^28607570680 is an apocalyptic number.

28607570680 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 28607570680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34777648080).

28607570680 is an abundant number, since it is smaller than the sum of its proper divisors (40947725480).

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

28607570680 is a wasteful number, since it uses less digits than its factorization.

28607570680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188080 (or 188076 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 28607570680 in words is "twenty-eight billion, six hundred seven million, five hundred seventy thousand, six hundred eighty".