421074384665 has 32 divisors (see below), whose sum is σ = 562345079040. Its totient is φ = 300095251200.

The previous prime is 421074384593. The next prime is 421074384671. The reversal of 421074384665 is 566483470124.

It is not a de Polignac number, because 421074384665 - 2¹⁰ = 421074383641 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 669212 + ... + 1135778.

It is an arithmetic number, because the mean of its divisors is an integer number (17573283720).

Almost surely, 2^421074384665 is an apocalyptic number.

It is an amenable number.

421074384665 is a deficient number, since it is larger than the sum of its proper divisors (141270694375).

421074384665 is a wasteful number, since it uses less digits than its factorization.

421074384665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466913.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 421074384665 in words is "four hundred twenty-one billion, seventy-four million, three hundred eighty-four thousand, six hundred sixty-five".