421580101264 has 45 divisors (see below), whose sum is σ = 950209393737. Its totient is φ = 180669394752.

The previous prime is 421580101219. The next prime is 421580101303. The reversal of 421580101264 is 462101085124.

The square root of 421580101264 is 649292.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 230296331664 + 191283769600 = 479892^2 + 437360^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18168582 + ... + 18191770.

Almost surely, 2^421580101264 is an apocalyptic number.

421580101264 is the 649292-nd square number.

It is an amenable number.

421580101264 is an abundant number, since it is smaller than the sum of its proper divisors (528629292473).

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

421580101264 is an frugal number, since it uses more digits than its factorization.

421580101264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46400 (or 23198 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

Adding to 421580101264 its reverse (462101085124), we get a palindrome (883681186388).

The spelling of 421580101264 in words is "four hundred twenty-one billion, five hundred eighty million, one hundred one thousand, two hundred sixty-four".