51144341443 has 4 divisors (see below), whose sum is σ = 55078521568. Its totient is φ = 47210161320.

The previous prime is 51144341431. The next prime is 51144341461. The reversal of 51144341443 is 34414344115.

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

It is a cyclic number.

It is not a de Polignac number, because 51144341443 - 2²¹ = 51142244291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51144341399 and 51144341408.

It is not an unprimeable number, because it can be changed into a prime (51144341243) 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, 1967090043 + ... + 1967090068.

It is an arithmetic number, because the mean of its divisors is an integer number (13769630392).

Almost surely, 2^51144341443 is an apocalyptic number.

51144341443 is a deficient number, since it is larger than the sum of its proper divisors (3934180125).

51144341443 is a wasteful number, since it uses less digits than its factorization.

51144341443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934180124.

The product of its digits is 46080, while the sum is 34.

Adding to 51144341443 its reverse (34414344115), we get a palindrome (85558685558).

The spelling of 51144341443 in words is "fifty-one billion, one hundred forty-four million, three hundred forty-one thousand, four hundred forty-three".