420409654722 has 54 divisors (see below), whose sum is σ = 925091401689. Its totient is φ = 137984441760.

The previous prime is 420409654711. The next prime is 420409654751. The reversal of 420409654722 is 227456904024.

420409654722 is a `hidden beast` number, since 42 + 0 + 40 + 9 + 6 + 547 + 22 = 666.

420409654722 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 416036610081 + 4373044641 = 645009^2 + 66129^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=458481.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 184308222 + ... + 184310502.

Almost surely, 2^420409654722 is an apocalyptic number.

420409654722 is an abundant number, since it is smaller than the sum of its proper divisors (504681746967).

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

420409654722 is an frugal number, since it uses more digits than its factorization.

420409654722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 420409654722 in words is "four hundred twenty billion, four hundred nine million, six hundred fifty-four thousand, seven hundred twenty-two".