421424205264 has 30 divisors (see below), whose sum is σ = 1179402463746. Its totient is φ = 140474735040.

The previous prime is 421424205233. The next prime is 421424205331. The reversal of 421424205264 is 462502424124.

421424205264 is a `hidden beast` number, since 4 + 2 + 1 + 424 + 205 + 26 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 259182810000 + 162241395264 = 509100^2 + 402792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1463278347 + ... + 1463278634.

Almost surely, 2^421424205264 is an apocalyptic number.

It is an amenable number.

421424205264 is an abundant number, since it is smaller than the sum of its proper divisors (757978258482).

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

421424205264 is a wasteful number, since it uses less digits than its factorization.

421424205264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926556995 (or 2926556986 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 421424205264 its reverse (462502424124), we get a palindrome (883926629388).

The spelling of 421424205264 in words is "four hundred twenty-one billion, four hundred twenty-four million, two hundred five thousand, two hundred sixty-four".