51282051339 has 4 divisors (see below), whose sum is σ = 68376068456. Its totient is φ = 34188034224.

The previous prime is 51282051311. The next prime is 51282051341. The reversal of 51282051339 is 93315028215.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51282051339 - 2⁵ = 51282051307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51282051297 and 51282051306.

It is not an unprimeable number, because it can be changed into a prime (51282051739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8547008554 + ... + 8547008559.

It is an arithmetic number, because the mean of its divisors is an integer number (17094017114).

Almost surely, 2^51282051339 is an apocalyptic number.

51282051339 is a deficient number, since it is larger than the sum of its proper divisors (17094017117).

51282051339 is a wasteful number, since it uses less digits than its factorization.

51282051339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094017116.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 51282051339 in words is "fifty-one billion, two hundred eighty-two million, fifty-one thousand, three hundred thirty-nine".