8100515280 has 320 divisors, whose sum is σ = 29657601792. Its totient is φ = 1803141120.

The previous prime is 8100515279. The next prime is 8100515341. The reversal of 8100515280 is 825150018.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 7996054 + ... + 7997066.

Almost surely, 2^8100515280 is an apocalyptic number.

8100515280 is a gapful number since it is divisible by the number (80) 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 8100515280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14828800896).

8100515280 is an abundant number, since it is smaller than the sum of its proper divisors (21557086512).

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

8100515280 is a wasteful number, since it uses less digits than its factorization.

8100515280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 8100515280 is about 90002.8626211411. The cubic root of 8100515280 is about 2008.3414351967.

Adding to 8100515280 its reverse (825150018), we get a palindrome (8925665298).

The spelling of 8100515280 in words is "eight billion, one hundred million, five hundred fifteen thousand, two hundred eighty".