8456497280 has 256 divisors, whose sum is σ = 25388501760. Its totient is φ = 2616606720.

The previous prime is 8456497253. The next prime is 8456497319. The reversal of 8456497280 is 827946548.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7736414 + ... + 7737506.

It is an arithmetic number, because the mean of its divisors is an integer number (99173835).

Almost surely, 2^8456497280 is an apocalyptic number.

8456497280 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 8456497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12694250880).

8456497280 is an abundant number, since it is smaller than the sum of its proper divisors (16932004480).

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

8456497280 is a wasteful number, since it uses less digits than its factorization.

8456497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 8456497280 is about 91959.2153076569. The cubic root of 8456497280 is about 2037.3399649983.

The spelling of 8456497280 in words is "eight billion, four hundred fifty-six million, four hundred ninety-seven thousand, two hundred eighty".