834661662497 has 4 divisors (see below), whose sum is σ = 898866405780. Its totient is φ = 770456919216.

The previous prime is 834661662487. The next prime is 834661662521. The reversal of 834661662497 is 794266166438.

834661662497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794266166438 = 2 ⋅397133083219.

It can be written as a sum of positive squares in 2 ways, for example, as 99622928161 + 735038734336 = 315631^2 + 857344^2 .

It is a cyclic number.

It is not a de Polignac number, because 834661662497 - 2²⁴ = 834644885281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834661662407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32102371622 + ... + 32102371647.

It is an arithmetic number, because the mean of its divisors is an integer number (224716601445).

Almost surely, 2^834661662497 is an apocalyptic number.

It is an amenable number.

834661662497 is a deficient number, since it is larger than the sum of its proper divisors (64204743283).

834661662497 is a wasteful number, since it uses less digits than its factorization.

834661662497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64204743282.

The product of its digits is 62705664, while the sum is 62.

The spelling of 834661662497 in words is "eight hundred thirty-four billion, six hundred sixty-one million, six hundred sixty-two thousand, four hundred ninety-seven".