522687212407420 has 24 divisors (see below), whose sum is σ = 1097654975329248. Its totient is φ = 209072631768000.

The previous prime is 522687212407403. The next prime is 522687212407421. The reversal of 522687212407420 is 24704212786225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522687212407421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138921856 + ... + 142634695.

It is an arithmetic number, because the mean of its divisors is an integer number (45735623972052).

Almost surely, 2^{522687212407420} is an apocalyptic number.

It is an amenable number.

522687212407420 is an abundant number, since it is smaller than the sum of its proper divisors (574967762921828).

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

522687212407420 is a wasteful number, since it uses less digits than its factorization.

522687212407420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281649381 (or 281649379 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 52.

The spelling of 522687212407420 in words is "five hundred twenty-two trillion, six hundred eighty-seven billion, two hundred twelve million, four hundred seven thousand, four hundred twenty".