51444430005 has 16 divisors (see below), whose sum is σ = 82314057024. Its totient is φ = 27436039680.

The previous prime is 51444429989. The next prime is 51444430013. The reversal of 51444430005 is 50003444415.

It is not a de Polignac number, because 51444430005 - 2⁴ = 51444429989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588325 + ... + 670085.

It is an arithmetic number, because the mean of its divisors is an integer number (5144628564).

Almost surely, 2^51444430005 is an apocalyptic number.

It is an amenable number.

51444430005 is a deficient number, since it is larger than the sum of its proper divisors (30869627019).

51444430005 is a wasteful number, since it uses less digits than its factorization.

51444430005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123716.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 51444430005 in words is "fifty-one billion, four hundred forty-four million, four hundred thirty thousand, five".