470005865921 has 4 divisors (see below), whose sum is σ = 470012686272. Its totient is φ = 469999045572.

The previous prime is 470005865899. The next prime is 470005866037. The reversal of 470005865921 is 129568500074.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 470005865921 - 2¹⁰ = 470005864897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (470005865221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3305741 + ... + 3444986.

It is an arithmetic number, because the mean of its divisors is an integer number (117503171568).

Almost surely, 2^470005865921 is an apocalyptic number.

It is an amenable number.

470005865921 is a deficient number, since it is larger than the sum of its proper divisors (6820351).

470005865921 is an equidigital number, since it uses as much as digits as its factorization.

470005865921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820350.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 470005865921 in words is "four hundred seventy billion, five million, eight hundred sixty-five thousand, nine hundred twenty-one".