51332423451 has 8 divisors (see below), whose sum is σ = 68444513280. Its totient is φ = 34220974632.

The previous prime is 51332423447. The next prime is 51332423453. The reversal of 51332423451 is 15432423315.

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

It is not a de Polignac number, because 51332423451 - 2² = 51332423447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51332423453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76626 + ... + 329448.

It is an arithmetic number, because the mean of its divisors is an integer number (8555564160).

Almost surely, 2^51332423451 is an apocalyptic number.

51332423451 is a deficient number, since it is larger than the sum of its proper divisors (17112089829).

51332423451 is a wasteful number, since it uses less digits than its factorization.

51332423451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320505.

The product of its digits is 43200, while the sum is 33.

Adding to 51332423451 its reverse (15432423315), we get a palindrome (66764846766).

The spelling of 51332423451 in words is "fifty-one billion, three hundred thirty-two million, four hundred twenty-three thousand, four hundred fifty-one".