8491651134828 has 48 divisors (see below), whose sum is σ = 21139521346944. Its totient is φ = 2643711166720.

The previous prime is 8491651134779. The next prime is 8491651134859. The reversal of 8491651134828 is 8284311561948.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158850150 + ... + 158903597.

It is an arithmetic number, because the mean of its divisors is an integer number (440406694728).

Almost surely, 2^{8491651134828} is an apocalyptic number.

It is an amenable number.

8491651134828 is an abundant number, since it is smaller than the sum of its proper divisors (12647870212116).

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

8491651134828 is a wasteful number, since it uses less digits than its factorization.

8491651134828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317753902 (or 317753900 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 60.

The spelling of 8491651134828 in words is "eight trillion, four hundred ninety-one billion, six hundred fifty-one million, one hundred thirty-four thousand, eight hundred twenty-eight".