464640605465420 has 48 divisors (see below), whose sum is σ = 1005049187966208. Its totient is φ = 180331791998400.

The previous prime is 464640605465389. The next prime is 464640605465441. The reversal of 464640605465420 is 24564506046464.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788876014 + ... + 1789135733.

It is an arithmetic number, because the mean of its divisors is an integer number (20938524749296).

Almost surely, 2^{464640605465420} is an apocalyptic number.

It is an amenable number.

464640605465420 is an abundant number, since it is smaller than the sum of its proper divisors (540408582500788).

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

464640605465420 is a wasteful number, since it uses less digits than its factorization.

464640605465420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578011950 (or 3578011948 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 56.

The spelling of 464640605465420 in words is "four hundred sixty-four trillion, six hundred forty billion, six hundred five million, four hundred sixty-five thousand, four hundred twenty".