513202405369 has 2 divisors, whose sum is σ = 513202405370. Its totient is φ = 513202405368.

The previous prime is 513202405333. The next prime is 513202405421. The reversal of 513202405369 is 963504202315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348519026025 + 164683379344 = 590355^2 + 405812^2 .

It is a cyclic number.

It is not a de Polignac number, because 513202405369 - 2¹⁷ = 513202274297 is a prime.

It is a super-2 number, since 2×513202405369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (513202445369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256601202684 + 256601202685.

It is an arithmetic number, because the mean of its divisors is an integer number (256601202685).

Almost surely, 2^513202405369 is an apocalyptic number.

It is an amenable number.

513202405369 is a deficient number, since it is larger than the sum of its proper divisors (1).

513202405369 is an equidigital number, since it uses as much as digits as its factorization.

513202405369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 513202405369 in words is "five hundred thirteen billion, two hundred two million, four hundred five thousand, three hundred sixty-nine".