1610047774681 has 2 divisors, whose sum is σ = 1610047774682. Its totient is φ = 1610047774680.

The previous prime is 1610047774639. The next prime is 1610047774711. The reversal of 1610047774681 is 1864777400161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1609115083081 + 932691600 = 1268509^2 + 30540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610047774681 - 2¹⁷ = 1610047643609 is a prime.

It is a super-2 number, since 2×1610047774681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1610047774481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805023887340 + 805023887341.

It is an arithmetic number, because the mean of its divisors is an integer number (805023887341).

Almost surely, 2^{1610047774681} is an apocalyptic number.

It is an amenable number.

1610047774681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1610047774681 is an equidigital number, since it uses as much as digits as its factorization.

1610047774681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 1610047774681 in words is "one trillion, six hundred ten billion, forty-seven million, seven hundred seventy-four thousand, six hundred eighty-one".