51443340623443 has 8 divisors (see below), whose sum is σ = 51753724390368. Its totient is φ = 51132984711744.

The previous prime is 51443340623429. The next prime is 51443340623449. The reversal of 51443340623443 is 34432604334415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51443340623443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51443340623393 and 51443340623402.

It is not an unprimeable number, because it can be changed into a prime (51443340623449) 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, 3253096 + ... + 10652197.

It is an arithmetic number, because the mean of its divisors is an integer number (6469215548796).

Almost surely, 2^{51443340623443} is an apocalyptic number.

51443340623443 is a deficient number, since it is larger than the sum of its proper divisors (310383766925).

51443340623443 is a wasteful number, since it uses less digits than its factorization.

51443340623443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927613.

The product of its (nonzero) digits is 4976640, while the sum is 46.

Adding to 51443340623443 its reverse (34432604334415), we get a palindrome (85875944957858).

The spelling of 51443340623443 in words is "fifty-one trillion, four hundred forty-three billion, three hundred forty million, six hundred twenty-three thousand, four hundred forty-three".