402402260550677 has 2 divisors, whose sum is σ = 402402260550678. Its totient is φ = 402402260550676.

The previous prime is 402402260550599. The next prime is 402402260550707. The reversal of 402402260550677 is 776055062204204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305008376031121 + 97393884519556 = 17464489^2 + 9868834^2 .

It is a cyclic number.

It is not a de Polignac number, because 402402260550677 - 2¹⁴ = 402402260534293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402402260520677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201201130275338 + 201201130275339.

It is an arithmetic number, because the mean of its divisors is an integer number (201201130275339).

Almost surely, 2^{402402260550677} is an apocalyptic number.

It is an amenable number.

402402260550677 is a deficient number, since it is larger than the sum of its proper divisors (1).

402402260550677 is an equidigital number, since it uses as much as digits as its factorization.

402402260550677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 402402260550677 in words is "four hundred two trillion, four hundred two billion, two hundred sixty million, five hundred fifty thousand, six hundred seventy-seven".