19294761813713 has 2 divisors, whose sum is σ = 19294761813714. Its totient is φ = 19294761813712.

The previous prime is 19294761813683. The next prime is 19294761813793. The reversal of 19294761813713 is 31731816749291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17023975024144 + 2270786789569 = 4126012^2 + 1506913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19294761813713 is a prime.

It is not a weakly prime, because it can be changed into another prime (19294761813793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9647380906856 + 9647380906857.

It is an arithmetic number, because the mean of its divisors is an integer number (9647380906857).

Almost surely, 2^{19294761813713} is an apocalyptic number.

It is an amenable number.

19294761813713 is a deficient number, since it is larger than the sum of its proper divisors (1).

19294761813713 is an equidigital number, since it uses as much as digits as its factorization.

19294761813713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 62.

The spelling of 19294761813713 in words is "nineteen trillion, two hundred ninety-four billion, seven hundred sixty-one million, eight hundred thirteen thousand, seven hundred thirteen".