51242248712 has 36 divisors (see below), whose sum is σ = 96869565135. Its totient is φ = 25412078160.

The previous prime is 51242248699. The next prime is 51242248727. The reversal of 51242248712 is 21784224215.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 25621124356 + 25621124356 = 160066^2 + 160066^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160066.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 104362787 + ... + 104363277.

Almost surely, 2^51242248712 is an apocalyptic number.

It is an amenable number.

51242248712 is a deficient number, since it is larger than the sum of its proper divisors (45627316423).

51242248712 is an frugal number, since it uses more digits than its factorization.

51242248712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 656 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The spelling of 51242248712 in words is "fifty-one billion, two hundred forty-two million, two hundred forty-eight thousand, seven hundred twelve".