8487122490 has 384 divisors, whose sum is σ = 28999047168. Its totient is φ = 1734670080.

The previous prime is 8487122489. The next prime is 8487122533. The reversal of 8487122490 is 942217848.

8487122490 is a `hidden beast` number, since 8 + 487 + 122 + 49 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12536032 + ... + 12536708.

It is an arithmetic number, because the mean of its divisors is an integer number (75518352).

Almost surely, 2^8487122490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8487122490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14499523584).

8487122490 is an abundant number, since it is smaller than the sum of its proper divisors (20511924678).

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

8487122490 is a wasteful number, since it uses less digits than its factorization.

8487122490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 8487122490 is about 92125.5799981742. The cubic root of 8487122490 is about 2039.7964113438.

The spelling of 8487122490 in words is "eight billion, four hundred eighty-seven million, one hundred twenty-two thousand, four hundred ninety".