840808035125 has 8 divisors (see below), whose sum is σ = 1049328427992. Its totient is φ = 672646428000.

The previous prime is 840808035107. The next prime is 840808035143. The reversal of 840808035125 is 521530808048.

It is an interprime number because it is at equal distance from previous prime (840808035107) and next prime (840808035143).

It can be written as a sum of positive squares in 4 ways, for example, as 214467167236 + 626340867889 = 463106^2 + 791417^2 .

It is not a de Polignac number, because 840808035125 - 2¹⁴ = 840808018741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3363232016 + ... + 3363232265.

It is an arithmetic number, because the mean of its divisors is an integer number (131166053499).

Almost surely, 2^840808035125 is an apocalyptic number.

It is an amenable number.

840808035125 is a deficient number, since it is larger than the sum of its proper divisors (208520392867).

840808035125 is an equidigital number, since it uses as much as digits as its factorization.

840808035125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726464296 (or 6726464286 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 840808035125 in words is "eight hundred forty billion, eight hundred eight million, thirty-five thousand, one hundred twenty-five".