8613047137920 has 256 divisors, whose sum is σ = 27523534752000. Its totient is φ = 2291010011136.

The previous prime is 8613047137909. The next prime is 8613047138011. The reversal of 8613047137920 is 297317403168.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1657308762 + ... + 1657313958.

It is an arithmetic number, because the mean of its divisors is an integer number (107513807625).

Almost surely, 2^{8613047137920} is an apocalyptic number.

8613047137920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8613047137920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13761767376000).

8613047137920 is an abundant number, since it is smaller than the sum of its proper divisors (18910487614080).

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

8613047137920 is a wasteful number, since it uses less digits than its factorization.

8613047137920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235 (or 7223 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 8613047137920 in words is "eight trillion, six hundred thirteen billion, forty-seven million, one hundred thirty-seven thousand, nine hundred twenty".