537513645769 has 2 divisors, whose sum is σ = 537513645770. Its totient is φ = 537513645768.

The previous prime is 537513645737. The next prime is 537513645797. The reversal of 537513645769 is 967546315735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452879199369 + 84634446400 = 672963^2 + 290920^2 .

It is a cyclic number.

It is not a de Polignac number, because 537513645769 - 2⁵ = 537513645737 is a prime.

It is a super-2 number, since 2×537513645769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (537513642769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268756822884 + 268756822885.

It is an arithmetic number, because the mean of its divisors is an integer number (268756822885).

Almost surely, 2^537513645769 is an apocalyptic number.

It is an amenable number.

537513645769 is a deficient number, since it is larger than the sum of its proper divisors (1).

537513645769 is an equidigital number, since it uses as much as digits as its factorization.

537513645769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442000, while the sum is 61.

The spelling of 537513645769 in words is "five hundred thirty-seven billion, five hundred thirteen million, six hundred forty-five thousand, seven hundred sixty-nine".