522419843138 has 6 divisors (see below), whose sum is σ = 783631297971. Its totient is φ = 261209410482.

The previous prime is 522419843107. The next prime is 522419843171. The reversal of 522419843138 is 831348914225.

It can be written as a sum of positive squares in only one way, i.e., 261209921569 + 261209921569 = 511087^2 + 511087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=511087.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 766631 + ... + 1277717.

Almost surely, 2^522419843138 is an apocalyptic number.

522419843138 is a deficient number, since it is larger than the sum of its proper divisors (261211454833).

522419843138 is an frugal number, since it uses more digits than its factorization.

522419843138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022176 (or 511089 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

Multiplying 522419843138 by its sum of digits (50), we get a square (26120992156900 = 5110870²).

The spelling of 522419843138 in words is "five hundred twenty-two billion, four hundred nineteen million, eight hundred forty-three thousand, one hundred thirty-eight".