51444100345 has 32 divisors (see below), whose sum is σ = 70297839360. Its totient is φ = 35774576640.

The previous prime is 51444100343. The next prime is 51444100363. The reversal of 51444100345 is 54300144415.

It is not a de Polignac number, because 51444100345 - 2¹ = 51444100343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51444100343) 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 31 ways as a sum of consecutive naturals, for example, 4914357 + ... + 4924813.

It is an arithmetic number, because the mean of its divisors is an integer number (2196807480).

Almost surely, 2^51444100345 is an apocalyptic number.

51444100345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51444100345 is a deficient number, since it is larger than the sum of its proper divisors (18853739015).

51444100345 is a wasteful number, since it uses less digits than its factorization.

51444100345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14385.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 51444100345 in words is "fifty-one billion, four hundred forty-four million, one hundred thousand, three hundred forty-five".