265378769473 has 2 divisors, whose sum is σ = 265378769474. Its totient is φ = 265378769472.

The previous prime is 265378769471. The next prime is 265378769489. The reversal of 265378769473 is 374967873562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256245526849 + 9133242624 = 506207^2 + 95568^2 .

It is a cyclic number.

It is not a de Polignac number, because 265378769473 - 2¹ = 265378769471 is a prime.

Together with 265378769471, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 265378769399 and 265378769408.

It is not a weakly prime, because it can be changed into another prime (265378769471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132689384736 + 132689384737.

It is an arithmetic number, because the mean of its divisors is an integer number (132689384737).

Almost surely, 2^265378769473 is an apocalyptic number.

It is an amenable number.

265378769473 is a deficient number, since it is larger than the sum of its proper divisors (1).

265378769473 is an equidigital number, since it uses as much as digits as its factorization.

265378769473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320060160, while the sum is 67.

The spelling of 265378769473 in words is "two hundred sixty-five billion, three hundred seventy-eight million, seven hundred sixty-nine thousand, four hundred seventy-three".