521414321630 has 32 divisors (see below), whose sum is σ = 947323278720. Its totient is φ = 206621604000.

The previous prime is 521414321629. The next prime is 521414321633. The reversal of 521414321630 is 36123414125.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521414321633) 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, 247505 + ... + 1050755.

It is an arithmetic number, because the mean of its divisors is an integer number (29603852460).

Almost surely, 2^521414321630 is an apocalyptic number.

521414321630 is a deficient number, since it is larger than the sum of its proper divisors (425908957090).

521414321630 is a wasteful number, since it uses less digits than its factorization.

521414321630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803864.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 521414321630 its reverse (36123414125), we get a palindrome (557537735755).

The spelling of 521414321630 in words is "five hundred twenty-one billion, four hundred fourteen million, three hundred twenty-one thousand, six hundred thirty".