51351859859 has 2 divisors, whose sum is σ = 51351859860. Its totient is φ = 51351859858.

The previous prime is 51351859837. The next prime is 51351859883. The reversal of 51351859859 is 95895815315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51351859859 - 2³² = 47056892563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51351859798 and 51351859807.

It is not a weakly prime, because it can be changed into another prime (51351859459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675929929 + 25675929930.

It is an arithmetic number, because the mean of its divisors is an integer number (25675929930).

Almost surely, 2^51351859859 is an apocalyptic number.

51351859859 is a deficient number, since it is larger than the sum of its proper divisors (1).

51351859859 is an equidigital number, since it uses as much as digits as its factorization.

51351859859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720000, while the sum is 59.

The spelling of 51351859859 in words is "fifty-one billion, three hundred fifty-one million, eight hundred fifty-nine thousand, eight hundred fifty-nine".