610681603227739 has 2 divisors, whose sum is σ = 610681603227740. Its totient is φ = 610681603227738.

The previous prime is 610681603227659. The next prime is 610681603227743. The reversal of 610681603227739 is 937722306186016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-610681603227739 is a prime.

It is not a weakly prime, because it can be changed into another prime (610681603227749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305340801613869 + 305340801613870.

It is an arithmetic number, because the mean of its divisors is an integer number (305340801613870).

Almost surely, 2^{610681603227739} is an apocalyptic number.

610681603227739 is a deficient number, since it is larger than the sum of its proper divisors (1).

610681603227739 is an equidigital number, since it uses as much as digits as its factorization.

610681603227739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 610681603227739 in words is "six hundred ten trillion, six hundred eighty-one billion, six hundred three million, two hundred twenty-seven thousand, seven hundred thirty-nine".