207728541280 has 192 divisors, whose sum is σ = 557956728000. Its totient is φ = 72449925120.

The previous prime is 207728541277. The next prime is 207728541281. The reversal of 207728541280 is 82145827702.

It is a happy number.

207728541280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×207728541280² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 207728541280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207728541281) 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, 13784950 + ... + 13800010.

It is an arithmetic number, because the mean of its divisors is an integer number (2906024625).

Almost surely, 2^207728541280 is an apocalyptic number.

207728541280 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 207728541280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278978364000).

207728541280 is an abundant number, since it is smaller than the sum of its proper divisors (350228186720).

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

207728541280 is a wasteful number, since it uses less digits than its factorization.

207728541280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457 (or 15449 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 207728541280 in words is "two hundred seven billion, seven hundred twenty-eight million, five hundred forty-one thousand, two hundred eighty".