728627218859 has 2 divisors, whose sum is σ = 728627218860. Its totient is φ = 728627218858.

The previous prime is 728627218793. The next prime is 728627218873. The reversal of 728627218859 is 958812726827.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728627218859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728627218795 and 728627218804.

It is not a weakly prime, because it can be changed into another prime (728627118859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364313609429 + 364313609430.

It is an arithmetic number, because the mean of its divisors is an integer number (364313609430).

Almost surely, 2^728627218859 is an apocalyptic number.

728627218859 is a deficient number, since it is larger than the sum of its proper divisors (1).

728627218859 is an equidigital number, since it uses as much as digits as its factorization.

728627218859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54190080, while the sum is 65.

The spelling of 728627218859 in words is "seven hundred twenty-eight billion, six hundred twenty-seven million, two hundred eighteen thousand, eight hundred fifty-nine".