617362385663 has 2 divisors, whose sum is σ = 617362385664. Its totient is φ = 617362385662.

The previous prime is 617362385657. The next prime is 617362385729. The reversal of 617362385663 is 366583263716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 617362385663 - 2¹² = 617362381567 is a prime.

It is a super-2 number, since 2×617362385663² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617362385599 and 617362385608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (617362325663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308681192831 + 308681192832.

It is an arithmetic number, because the mean of its divisors is an integer number (308681192832).

Almost surely, 2^617362385663 is an apocalyptic number.

617362385663 is a deficient number, since it is larger than the sum of its proper divisors (1).

617362385663 is an equidigital number, since it uses as much as digits as its factorization.

617362385663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 56.

The spelling of 617362385663 in words is "six hundred seventeen billion, three hundred sixty-two million, three hundred eighty-five thousand, six hundred sixty-three".