1684520492125 has 8 divisors (see below), whose sum is σ = 2102281574328. Its totient is φ = 1347616393600.

The previous prime is 1684520492119. The next prime is 1684520492129. The reversal of 1684520492125 is 5212940254861.

It can be written as a sum of positive squares in 4 ways, for example, as 103860531076 + 1580659961049 = 322274^2 + 1257243^2 .

It is not a de Polignac number, because 1684520492125 - 2¹⁵ = 1684520459357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684520492129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6738081844 + ... + 6738082093.

It is an arithmetic number, because the mean of its divisors is an integer number (262785196791).

Almost surely, 2^{1684520492125} is an apocalyptic number.

It is an amenable number.

1684520492125 is a deficient number, since it is larger than the sum of its proper divisors (417761082203).

1684520492125 is an equidigital number, since it uses as much as digits as its factorization.

1684520492125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13476163952 (or 13476163942 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 1684520492125 in words is "one trillion, six hundred eighty-four billion, five hundred twenty million, four hundred ninety-two thousand, one hundred twenty-five".