51043205013 has 8 divisors (see below), whose sum is σ = 68059360800. Its totient is φ = 34027926288.

The previous prime is 51043204981. The next prime is 51043205039. The reversal of 51043205013 is 31050234015.

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

It is not a de Polignac number, because 51043205013 - 2⁵ = 51043204981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043255013) 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, 68698 + ... + 326811.

It is an arithmetic number, because the mean of its divisors is an integer number (8507420100).

Almost surely, 2^51043205013 is an apocalyptic number.

It is an amenable number.

51043205013 is a deficient number, since it is larger than the sum of its proper divisors (17016155787).

51043205013 is a wasteful number, since it uses less digits than its factorization.

51043205013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438531.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 51043205013 its reverse (31050234015), we get a palindrome (82093439028).

The spelling of 51043205013 in words is "fifty-one billion, forty-three million, two hundred five thousand, thirteen".