610881720067 has 2 divisors, whose sum is σ = 610881720068. Its totient is φ = 610881720066.

The previous prime is 610881720049. The next prime is 610881720091. The reversal of 610881720067 is 760027188016.

610881720067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 610881720067 - 2³¹ = 608734236419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 610881719999 and 610881720026.

It is not a weakly prime, because it can be changed into another prime (610881760067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305440860033 + 305440860034.

It is an arithmetic number, because the mean of its divisors is an integer number (305440860034).

Almost surely, 2^610881720067 is an apocalyptic number.

610881720067 is a deficient number, since it is larger than the sum of its proper divisors (1).

610881720067 is an equidigital number, since it uses as much as digits as its factorization.

610881720067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 610881720067 in words is "six hundred ten billion, eight hundred eighty-one million, seven hundred twenty thousand, sixty-seven".