8531421480 has 96 divisors (see below), whose sum is σ = 27910920960. Its totient is φ = 2259964800.

The previous prime is 8531421473. The next prime is 8531421499. The reversal of 8531421480 is 841241358.

8531421480 is a `hidden beast` number, since 8 + 531 + 42 + 1 + 4 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24112 + ... + 132831.

It is an arithmetic number, because the mean of its divisors is an integer number (290738760).

Almost surely, 2^8531421480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8531421480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13955460480).

8531421480 is an abundant number, since it is smaller than the sum of its proper divisors (19379499480).

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

8531421480 is a wasteful number, since it uses less digits than its factorization.

8531421480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157111 (or 157104 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8531421480 is about 92365.6942809396. The cubic root of 8531421480 is about 2043.3391967296.

The spelling of 8531421480 in words is "eight billion, five hundred thirty-one million, four hundred twenty-one thousand, four hundred eighty".