19461673630361 has 2 divisors, whose sum is σ = 19461673630362. Its totient is φ = 19461673630360.

The previous prime is 19461673630279. The next prime is 19461673630367. The reversal of 19461673630361 is 16303637616491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19460449960000 + 1223670361 = 4411400^2 + 34981^2 .

It is a cyclic number.

It is not a de Polignac number, because 19461673630361 - 2¹⁸ = 19461673368217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19461673630297 and 19461673630306.

It is not a weakly prime, because it can be changed into another prime (19461673630367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9730836815180 + 9730836815181.

It is an arithmetic number, because the mean of its divisors is an integer number (9730836815181).

Almost surely, 2^{19461673630361} is an apocalyptic number.

It is an amenable number.

19461673630361 is a deficient number, since it is larger than the sum of its proper divisors (1).

19461673630361 is an equidigital number, since it uses as much as digits as its factorization.

19461673630361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 56.

The spelling of 19461673630361 in words is "nineteen trillion, four hundred sixty-one billion, six hundred seventy-three million, six hundred thirty thousand, three hundred sixty-one".