538422815529 has 27 divisors (see below), whose sum is σ = 781424605143. Its totient is φ = 357247657872.

The previous prime is 538422815503. The next prime is 538422815531. The reversal of 538422815529 is 925518224835.

The square root of 538422815529 is 733773.

It is a perfect power (a square), and thus also a powerful number.

538422815529 is a `hidden beast` number, since 5 + 3 + 8 + 4 + 2 + 2 + 81 + 552 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 92802483225 + 445620332304 = 304635^2 + 667548^2 .

It is not a de Polignac number, because 538422815529 - 2⁹ = 538422815017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538422813529) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 609764922 + ... + 609765804.

Almost surely, 2^538422815529 is an apocalyptic number.

538422815529 is the 733773-rd square number.

538422815529 is the 366887-th centered octagonal number.

It is an amenable number.

538422815529 is a deficient number, since it is larger than the sum of its proper divisors (243001789614).

538422815529 is an frugal number, since it uses more digits than its factorization.

538422815529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 1163 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The spelling of 538422815529 in words is "five hundred thirty-eight billion, four hundred twenty-two million, eight hundred fifteen thousand, five hundred twenty-nine".