526828131231 has 4 divisors (see below), whose sum is σ = 702437508312. Its totient is φ = 351218754152.

The previous prime is 526828131209. The next prime is 526828131233. The reversal of 526828131231 is 132131828625.

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

It is a cyclic number.

It is not a de Polignac number, because 526828131231 - 2¹⁴ = 526828114847 is a prime.

It is a super-2 number, since 2×526828131231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526828131233) 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, 87804688536 + ... + 87804688541.

It is an arithmetic number, because the mean of its divisors is an integer number (175609377078).

Almost surely, 2^526828131231 is an apocalyptic number.

526828131231 is a deficient number, since it is larger than the sum of its proper divisors (175609377081).

526828131231 is a wasteful number, since it uses less digits than its factorization.

526828131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175609377080.

The product of its digits is 138240, while the sum is 42.

Adding to 526828131231 its reverse (132131828625), we get a palindrome (658959959856).

The spelling of 526828131231 in words is "five hundred twenty-six billion, eight hundred twenty-eight million, one hundred thirty-one thousand, two hundred thirty-one".