51704281600043 has 4 divisors (see below), whose sum is σ = 51725497967520. Its totient is φ = 51683065232568.

The previous prime is 51704281600009. The next prime is 51704281600061. The reversal of 51704281600043 is 34000618240715.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51704281600043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51704281600343) 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, 10608180083 + ... + 10608184956.

It is an arithmetic number, because the mean of its divisors is an integer number (12931374491880).

Almost surely, 2^{51704281600043} is an apocalyptic number.

51704281600043 is a deficient number, since it is larger than the sum of its proper divisors (21216367477).

51704281600043 is a wasteful number, since it uses less digits than its factorization.

51704281600043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21216367476.

The product of its (nonzero) digits is 161280, while the sum is 41.

Adding to 51704281600043 its reverse (34000618240715), we get a palindrome (85704899840758).

The spelling of 51704281600043 in words is "fifty-one trillion, seven hundred four billion, two hundred eighty-one million, six hundred thousand, forty-three".