20346512495269 has 2 divisors, whose sum is σ = 20346512495270. Its totient is φ = 20346512495268.

The previous prime is 20346512495261. The next prime is 20346512495297. The reversal of 20346512495269 is 96259421564302.

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., 17412777271044 + 2933735224225 = 4172862^2 + 1712815^2 .

It is a cyclic number.

It is not a de Polignac number, because 20346512495269 - 2³ = 20346512495261 is a prime.

It is a super-2 number, since 2×20346512495269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20346512495261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173256247634 + 10173256247635.

It is an arithmetic number, because the mean of its divisors is an integer number (10173256247635).

Almost surely, 2^{20346512495269} is an apocalyptic number.

It is an amenable number.

20346512495269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20346512495269 is an equidigital number, since it uses as much as digits as its factorization.

20346512495269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27993600, while the sum is 58.

The spelling of 20346512495269 in words is "twenty trillion, three hundred forty-six billion, five hundred twelve million, four hundred ninety-five thousand, two hundred sixty-nine".