51642801276659 has 2 divisors, whose sum is σ = 51642801276660. Its totient is φ = 51642801276658.

The previous prime is 51642801276589. The next prime is 51642801276667. The reversal of 51642801276659 is 95667210824615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51642801276659 is a prime.

It is not a weakly prime, because it can be changed into another prime (51642801272659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25821400638329 + 25821400638330.

It is an arithmetic number, because the mean of its divisors is an integer number (25821400638330).

Almost surely, 2^{51642801276659} is an apocalyptic number.

51642801276659 is a deficient number, since it is larger than the sum of its proper divisors (1).

51642801276659 is an equidigital number, since it uses as much as digits as its factorization.

51642801276659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 51642801276659 in words is "fifty-one trillion, six hundred forty-two billion, eight hundred one million, two hundred seventy-six thousand, six hundred fifty-nine".