839281351129 has 27 divisors (see below), whose sum is σ = 959415741693. Its totient is φ = 733748562144.

The previous prime is 839281351127. The next prime is 839281351159. The reversal of 839281351129 is 921153182938.

The square root of 839281351129 is 916123.

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 295593379225 + 543687971904 = 543685^2 + 737352^2 .

It is not a de Polignac number, because 839281351129 - 2¹ = 839281351127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (839281351127) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 226280527 + ... + 226284235.

It is an arithmetic number, because the mean of its divisors is an integer number (35533916359).

Almost surely, 2^839281351129 is an apocalyptic number.

839281351129 is the 916123-rd square number.

839281351129 is the 458062-nd centered octagonal number.

It is an amenable number.

839281351129 is a deficient number, since it is larger than the sum of its proper divisors (120134390564).

839281351129 is an frugal number, since it uses more digits than its factorization.

839281351129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482 (or 3741 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The spelling of 839281351129 in words is "eight hundred thirty-nine billion, two hundred eighty-one million, three hundred fifty-one thousand, one hundred twenty-nine".