51452331345 has 12 divisors (see below), whose sum is σ = 89184041076. Its totient is φ = 27441243360.

The previous prime is 51452331331. The next prime is 51452331349. The reversal of 51452331345 is 54313325415.

51452331345 is a `hidden beast` number, since 514 + 5 + 2 + 3 + 3 + 134 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35633735361 + 15818595984 = 188769^2 + 125772^2 .

It is not a de Polignac number, because 51452331345 - 2²¹ = 51450234193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51452331349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571692526 + ... + 571692615.

It is an arithmetic number, because the mean of its divisors is an integer number (7432003423).

Almost surely, 2^51452331345 is an apocalyptic number.

It is an amenable number.

51452331345 is a deficient number, since it is larger than the sum of its proper divisors (37731709731).

51452331345 is a wasteful number, since it uses less digits than its factorization.

51452331345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143385152 (or 1143385149 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 51452331345 in words is "fifty-one billion, four hundred fifty-two million, three hundred thirty-one thousand, three hundred forty-five".