835019474389 has 2 divisors, whose sum is σ = 835019474390. Its totient is φ = 835019474388.

The previous prime is 835019474369. The next prime is 835019474437. The reversal of 835019474389 is 983474910538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668824645489 + 166194828900 = 817817^2 + 407670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-835019474389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (835019474309) by changing a digit.

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 as a sum of consecutive naturals, namely, 417509737194 + 417509737195.

It is an arithmetic number, because the mean of its divisors is an integer number (417509737195).

Almost surely, 2^835019474389 is an apocalyptic number.

It is an amenable number.

835019474389 is a deficient number, since it is larger than the sum of its proper divisors (1).

835019474389 is an equidigital number, since it uses as much as digits as its factorization.

835019474389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 835019474389 in words is "eight hundred thirty-five billion, nineteen million, four hundred seventy-four thousand, three hundred eighty-nine".