537865790461 has 2 divisors, whose sum is σ = 537865790462. Its totient is φ = 537865790460.

The previous prime is 537865790401. The next prime is 537865790503. The reversal of 537865790461 is 164097568735.

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., 504369836100 + 33495954361 = 710190^2 + 183019^2 .

It is a cyclic number.

It is not a de Polignac number, because 537865790461 - 2¹¹ = 537865788413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 537865790461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537865790401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268932895230 + 268932895231.

It is an arithmetic number, because the mean of its divisors is an integer number (268932895231).

Almost surely, 2^537865790461 is an apocalyptic number.

It is an amenable number.

537865790461 is a deficient number, since it is larger than the sum of its proper divisors (1).

537865790461 is an equidigital number, since it uses as much as digits as its factorization.

537865790461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 537865790461 in words is "five hundred thirty-seven billion, eight hundred sixty-five million, seven hundred ninety thousand, four hundred sixty-one".