521426060413 has 16 divisors (see below), whose sum is σ = 527093360640. Its totient is φ = 515792710000.

The previous prime is 521426060411. The next prime is 521426060459. The reversal of 521426060413 is 314060624125.

It is a cyclic number.

It is not a de Polignac number, because 521426060413 - 2¹ = 521426060411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521426060411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55283808 + ... + 55293238.

It is an arithmetic number, because the mean of its divisors is an integer number (32943335040).

Almost surely, 2^521426060413 is an apocalyptic number.

It is an amenable number.

521426060413 is a deficient number, since it is larger than the sum of its proper divisors (5667300227).

521426060413 is a wasteful number, since it uses less digits than its factorization.

521426060413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 521426060413 its reverse (314060624125), we get a palindrome (835486684538).

The spelling of 521426060413 in words is "five hundred twenty-one billion, four hundred twenty-six million, sixty thousand, four hundred thirteen".