537907725697 has 4 divisors (see below), whose sum is σ = 537918227460. Its totient is φ = 537897223936.

The previous prime is 537907725629. The next prime is 537907725701. The reversal of 537907725697 is 796527709735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796527709735 = 5 ⋅159305541947.

It can be written as a sum of positive squares in 2 ways, for example, as 270071459856 + 267836265841 = 519684^2 + 517529^2 .

It is a cyclic number.

It is not a de Polignac number, because 537907725697 - 2¹⁵ = 537907692929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537907723697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5173672 + ... + 5276617.

It is an arithmetic number, because the mean of its divisors is an integer number (134479556865).

Almost surely, 2^537907725697 is an apocalyptic number.

It is an amenable number.

537907725697 is a deficient number, since it is larger than the sum of its proper divisors (10501763).

537907725697 is a wasteful number, since it uses less digits than its factorization.

537907725697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501762.

The product of its (nonzero) digits is 175032900, while the sum is 67.

The spelling of 537907725697 in words is "five hundred thirty-seven billion, nine hundred seven million, seven hundred twenty-five thousand, six hundred ninety-seven".