8071802521452 has 72 divisors (see below), whose sum is σ = 20754563029200. Its totient is φ = 2644358268288.

The previous prime is 8071802521441. The next prime is 8071802521477. The reversal of 8071802521452 is 2541252081708.

8071802521452 is a `hidden beast` number, since 8 + 0 + 7 + 1 + 80 + 2 + 521 + 45 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8071802521398 and 8071802521407.

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, 8372374 + ... + 9286562.

It is an arithmetic number, because the mean of its divisors is an integer number (288257819850).

Almost surely, 2^{8071802521452} 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 8071802521452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10377281514600).

8071802521452 is an abundant number, since it is smaller than the sum of its proper divisors (12682760507748).

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

8071802521452 is a wasteful number, since it uses less digits than its factorization.

8071802521452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918415 (or 918410 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 8071802521452 in words is "eight trillion, seventy-one billion, eight hundred two million, five hundred twenty-one thousand, four hundred fifty-two".