538453260228557 has 4 divisors (see below), whose sum is σ = 538467432699900. Its totient is φ = 538439087757216.

The previous prime is 538453260228491. The next prime is 538453260228571. The reversal of 538453260228557 is 755822062354835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156556500160516 + 381896760068041 = 12512254^2 + 19542179^2 .

It is a cyclic number.

It is not a de Polignac number, because 538453260228557 - 2²⁶ = 538453193119693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538453260228493 and 538453260228502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538453260228577) 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, 7086178682 + ... + 7086254667.

It is an arithmetic number, because the mean of its divisors is an integer number (134616858174975).

Almost surely, 2^{538453260228557} is an apocalyptic number.

It is an amenable number.

538453260228557 is a deficient number, since it is larger than the sum of its proper divisors (14172471343).

538453260228557 is a wasteful number, since it uses less digits than its factorization.

538453260228557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14172471342.

The product of its (nonzero) digits is 483840000, while the sum is 65.

The spelling of 538453260228557 in words is "five hundred thirty-eight trillion, four hundred fifty-three billion, two hundred sixty million, two hundred twenty-eight thousand, five hundred fifty-seven".