206425312263 has 12 divisors (see below), whose sum is σ = 298216214400. Its totient is φ = 137595496896.

The previous prime is 206425312237. The next prime is 206425312277. The reversal of 206425312263 is 362213524602.

206425312263 is a `hidden beast` number, since 2 + 0 + 6 + 42 + 531 + 22 + 63 = 666.

It is not a de Polignac number, because 206425312263 - 2⁵ = 206425312231 is a prime.

It is a super-2 number, since 2×206425312263² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206425312213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1720231 + ... + 1836312.

It is an arithmetic number, because the mean of its divisors is an integer number (24851351200).

Almost surely, 2^206425312263 is an apocalyptic number.

206425312263 is a deficient number, since it is larger than the sum of its proper divisors (91790902137).

206425312263 is a wasteful number, since it uses less digits than its factorization.

206425312263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562998 (or 3562995 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 206425312263 its reverse (362213524602), we get a palindrome (568638836865).

The spelling of 206425312263 in words is "two hundred six billion, four hundred twenty-five million, three hundred twelve thousand, two hundred sixty-three".