456651421643 has 16 divisors (see below), whose sum is σ = 458943408000. Its totient is φ = 454367861760.

The previous prime is 456651421621. The next prime is 456651421679. The reversal of 456651421643 is 346124156654.

It is a cyclic number.

It is not a de Polignac number, because 456651421643 - 2⁶ = 456651421579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456651421613) 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, 435320183 + ... + 435321231.

It is an arithmetic number, because the mean of its divisors is an integer number (28683963000).

Almost surely, 2^456651421643 is an apocalyptic number.

456651421643 is a deficient number, since it is larger than the sum of its proper divisors (2291986357).

456651421643 is a wasteful number, since it uses less digits than its factorization.

456651421643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382.

The product of its digits is 2073600, while the sum is 47.

The spelling of 456651421643 in words is "four hundred fifty-six billion, six hundred fifty-one million, four hundred twenty-one thousand, six hundred forty-three".