531693448150913 has 2 divisors, whose sum is σ = 531693448150914. Its totient is φ = 531693448150912.

The previous prime is 531693448150867. The next prime is 531693448151123. The reversal of 531693448150913 is 319051844396135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525515598712129 + 6177849438784 = 22924127^2 + 2485528^2 .

It is a cyclic number.

It is not a de Polignac number, because 531693448150913 - 2¹⁰ = 531693448149889 is a prime.

It is a super-2 number, since 2×531693448150913² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (531693448158913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265846724075456 + 265846724075457.

It is an arithmetic number, because the mean of its divisors is an integer number (265846724075457).

Almost surely, 2^{531693448150913} is an apocalyptic number.

It is an amenable number.

531693448150913 is a deficient number, since it is larger than the sum of its proper divisors (1).

531693448150913 is an equidigital number, since it uses as much as digits as its factorization.

531693448150913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 531693448150913 in words is "five hundred thirty-one trillion, six hundred ninety-three billion, four hundred forty-eight million, one hundred fifty thousand, nine hundred thirteen".