834738716521651 has 8 divisors (see below), whose sum is σ = 839622244803120. Its totient is φ = 829865956771488.

The previous prime is 834738716521597. The next prime is 834738716521657. The reversal of 834738716521651 is 156125617837438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 834738716521651 - 2²¹ = 834738714424499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834738716521657) 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, 2691977341 + ... + 2692287406.

It is an arithmetic number, because the mean of its divisors is an integer number (104952780600390).

Almost surely, 2^{834738716521651} is an apocalyptic number.

834738716521651 is a deficient number, since it is larger than the sum of its proper divisors (4883528281469).

834738716521651 is a wasteful number, since it uses less digits than its factorization.

834738716521651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384265653.

The product of its digits is 203212800, while the sum is 67.

The spelling of 834738716521651 in words is "eight hundred thirty-four trillion, seven hundred thirty-eight billion, seven hundred sixteen million, five hundred twenty-one thousand, six hundred fifty-one".