537216631028893 has 2 divisors, whose sum is σ = 537216631028894. Its totient is φ = 537216631028892.

The previous prime is 537216631028809. The next prime is 537216631028921. The reversal of 537216631028893 is 398820136612735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477851424394969 + 59365206633924 = 21859813^2 + 7704882^2 .

It is a cyclic number.

It is not a de Polignac number, because 537216631028893 - 2²⁵ = 537216597474461 is a prime.

It is a super-2 number, since 2×537216631028893² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537216631028093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268608315514446 + 268608315514447.

It is an arithmetic number, because the mean of its divisors is an integer number (268608315514447).

Almost surely, 2^{537216631028893} is an apocalyptic number.

It is an amenable number.

537216631028893 is a deficient number, since it is larger than the sum of its proper divisors (1).

537216631028893 is an equidigital number, since it uses as much as digits as its factorization.

537216631028893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 537216631028893 in words is "five hundred thirty-seven trillion, two hundred sixteen billion, six hundred thirty-one million, twenty-eight thousand, eight hundred ninety-three".