51834353317 has 4 divisors (see below), whose sum is σ = 52684096876. Its totient is φ = 50984609760.

The previous prime is 51834353309. The next prime is 51834353327. The reversal of 51834353317 is 71335343815.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280922081 + 49553431236 = 47759^2 + 222606^2 .

It is a cyclic number.

It is not a de Polignac number, because 51834353317 - 2³ = 51834353309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51834353327) 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, 424871688 + ... + 424871809.

It is an arithmetic number, because the mean of its divisors is an integer number (13171024219).

Almost surely, 2^51834353317 is an apocalyptic number.

It is an amenable number.

51834353317 is a deficient number, since it is larger than the sum of its proper divisors (849743559).

51834353317 is an equidigital number, since it uses as much as digits as its factorization.

51834353317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849743558.

The product of its digits is 453600, while the sum is 43.

The spelling of 51834353317 in words is "fifty-one billion, eight hundred thirty-four million, three hundred fifty-three thousand, three hundred seventeen".