28206597120 has 352 divisors, whose sum is σ = 100527678720. Its totient is φ = 6702366720.

The previous prime is 28206597049. The next prime is 28206597127. The reversal of 28206597120 is 2179560282.

It is a super-2 number, since 2×28206597120² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28206597127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5788285 + ... + 5793155.

Almost surely, 2^28206597120 is an apocalyptic number.

28206597120 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 28206597120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50263839360).

28206597120 is an abundant number, since it is smaller than the sum of its proper divisors (72321081600).

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

28206597120 is a wasteful number, since it uses less digits than its factorization.

28206597120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 28206597120 in words is "twenty-eight billion, two hundred six million, five hundred ninety-seven thousand, one hundred twenty".