8542070784 has 480 divisors, whose sum is σ = 29218349160. Its totient is φ = 2463105024.

The previous prime is 8542070783. The next prime is 8542070813. The reversal of 8542070784 is 4870702458.

8542070784 is a `hidden beast` number, since 85 + 420 + 70 + 7 + 84 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5824742400 + 2717328384 = 76320^2 + 52128^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542070783) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36661132 + ... + 36661364.

Almost surely, 2^8542070784 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 8542070784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14609174580).

8542070784 is an abundant number, since it is smaller than the sum of its proper divisors (20676278376).

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

8542070784 is a wasteful number, since it uses less digits than its factorization.

8542070784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 8542070784 is about 92423.3238095233. The cubic root of 8542070784 is about 2044.1890391860.

The spelling of 8542070784 in words is "eight billion, five hundred forty-two million, seventy thousand, seven hundred eighty-four".