8546787933121 has 9 divisors (see below), whose sum is σ = 8626239820233. Its totient is φ = 8468061297840.

The previous prime is 8546787933109. The next prime is 8546787933181. The reversal of 8546787933121 is 1213397876458.

The square root of 8546787933121 is 2923489.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2880864630721 + 5665923302400 = 1697311^2 + 2380320^2 .

It is not a de Polignac number, because 8546787933121 - 2¹⁵ = 8546787900353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8546787933181) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 318646891 + ... + 318673711.

It is an arithmetic number, because the mean of its divisors is an integer number (958471091137).

Almost surely, 2^{8546787933121} is an apocalyptic number.

8546787933121 is the 2923489-th square number.

8546787933121 is the 1461745-th centered octagonal number.

It is an amenable number.

8546787933121 is a deficient number, since it is larger than the sum of its proper divisors (79451887112).

8546787933121 is an frugal number, since it uses more digits than its factorization.

8546787933121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53860 (or 26930 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

Multiplying 8546787933121 by its sum of digits (64), we get a square (546994427719744 = 23387912²).

The spelling of 8546787933121 in words is "eight trillion, five hundred forty-six billion, seven hundred eighty-seven million, nine hundred thirty-three thousand, one hundred twenty-one".