526311221142 has 32 divisors (see below), whose sum is σ = 1244479737600. Its totient is φ = 145189302048.

The previous prime is 526311221141. The next prime is 526311221159. The reversal of 526311221142 is 241122113625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526311221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216054292 + ... + 216056727.

It is an arithmetic number, because the mean of its divisors is an integer number (38889991800).

Almost surely, 2^526311221142 is an apocalyptic number.

526311221142 is an abundant number, since it is smaller than the sum of its proper divisors (718168516458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

526311221142 is a wasteful number, since it uses less digits than its factorization.

526311221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432111060.

The product of its digits is 5760, while the sum is 30.

Adding to 526311221142 its reverse (241122113625), we get a palindrome (767433334767).

The spelling of 526311221142 in words is "five hundred twenty-six billion, three hundred eleven million, two hundred twenty-one thousand, one hundred forty-two".