51442005345 has 16 divisors (see below), whose sum is σ = 82831462080. Its totient is φ = 27260985024.

The previous prime is 51442005341. The next prime is 51442005347. The reversal of 51442005345 is 54350024415.

It is not a de Polignac number, because 51442005345 - 2² = 51442005341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51442005341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10919515 + ... + 10924224.

It is an arithmetic number, because the mean of its divisors is an integer number (5176966380).

Almost surely, 2^51442005345 is an apocalyptic number.

It is an amenable number.

51442005345 is a deficient number, since it is larger than the sum of its proper divisors (31389456735).

51442005345 is a wasteful number, since it uses less digits than its factorization.

51442005345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843904.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 51442005345 in words is "fifty-one billion, four hundred forty-two million, five thousand, three hundred forty-five".