1814495239769 has 2 divisors, whose sum is σ = 1814495239770. Its totient is φ = 1814495239768.

The previous prime is 1814495239757. The next prime is 1814495239787. The reversal of 1814495239769 is 9679325944181.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1736926305625 + 77568934144 = 1317925^2 + 278512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1814495239769 is a prime.

It is a super-2 number, since 2×1814495239769² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1814495239699 and 1814495239708.

It is not a weakly prime, because it can be changed into another prime (1814495239369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907247619884 + 907247619885.

It is an arithmetic number, because the mean of its divisors is an integer number (907247619885).

Almost surely, 2^{1814495239769} is an apocalyptic number.

It is an amenable number.

1814495239769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814495239769 is an equidigital number, since it uses as much as digits as its factorization.

1814495239769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 68.

The spelling of 1814495239769 in words is "one trillion, eight hundred fourteen billion, four hundred ninety-five million, two hundred thirty-nine thousand, seven hundred sixty-nine".