51156302339 has 2 divisors, whose sum is σ = 51156302340. Its totient is φ = 51156302338.

The previous prime is 51156302317. The next prime is 51156302341. The reversal of 51156302339 is 93320365115.

51156302339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51156302339 is a prime.

Together with 51156302341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51156302839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25578151169 + 25578151170.

It is an arithmetic number, because the mean of its divisors is an integer number (25578151170).

Almost surely, 2^51156302339 is an apocalyptic number.

51156302339 is a deficient number, since it is larger than the sum of its proper divisors (1).

51156302339 is an equidigital number, since it uses as much as digits as its factorization.

51156302339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The spelling of 51156302339 in words is "fifty-one billion, one hundred fifty-six million, three hundred two thousand, three hundred thirty-nine".