521314430620 has 24 divisors (see below), whose sum is σ = 1094787853488. Its totient is φ = 208520524800.

The previous prime is 521314430603. The next prime is 521314430641. The reversal of 521314430620 is 26034413125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543100 + ... + 1156540.

It is an arithmetic number, because the mean of its divisors is an integer number (45616160562).

Almost surely, 2^521314430620 is an apocalyptic number.

It is an amenable number.

521314430620 is an abundant number, since it is smaller than the sum of its proper divisors (573473422868).

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

521314430620 is a wasteful number, since it uses less digits than its factorization.

521314430620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655941 (or 655939 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 521314430620 its reverse (26034413125), we get a palindrome (547348843745).

The spelling of 521314430620 in words is "five hundred twenty-one billion, three hundred fourteen million, four hundred thirty thousand, six hundred twenty".