531613400063 has 2 divisors, whose sum is σ = 531613400064. Its totient is φ = 531613400062.

The previous prime is 531613400029. The next prime is 531613400081. The reversal of 531613400063 is 360004316135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531613400063 - 2¹⁸ = 531613137919 is a prime.

It is a super-2 number, since 2×531613400063² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531613400023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265806700031 + 265806700032.

It is an arithmetic number, because the mean of its divisors is an integer number (265806700032).

Almost surely, 2^531613400063 is an apocalyptic number.

531613400063 is a deficient number, since it is larger than the sum of its proper divisors (1).

531613400063 is an equidigital number, since it uses as much as digits as its factorization.

531613400063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 531613400063 its reverse (360004316135), we get a palindrome (891617716198).

The spelling of 531613400063 in words is "five hundred thirty-one billion, six hundred thirteen million, four hundred thousand, sixty-three".