834151993813 has 2 divisors, whose sum is σ = 834151993814. Its totient is φ = 834151993812.

The previous prime is 834151993777. The next prime is 834151993817. The reversal of 834151993813 is 318399151438.

834151993813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491403804004 + 342748189809 = 701002^2 + 585447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-834151993813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834151993817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417075996906 + 417075996907.

It is an arithmetic number, because the mean of its divisors is an integer number (417075996907).

Almost surely, 2^834151993813 is an apocalyptic number.

It is an amenable number.

834151993813 is a deficient number, since it is larger than the sum of its proper divisors (1).

834151993813 is an equidigital number, since it uses as much as digits as its factorization.

834151993813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 55.

The spelling of 834151993813 in words is "eight hundred thirty-four billion, one hundred fifty-one million, nine hundred ninety-three thousand, eight hundred thirteen".