421174261673 has 16 divisors (see below), whose sum is σ = 494465316480. Its totient is φ = 354455404800.

The previous prime is 421174261633. The next prime is 421174261679. The reversal of 421174261673 is 376162471124.

It is a cyclic number.

It is not a de Polignac number, because 421174261673 - 2¹⁰ = 421174260649 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 (421174261679) 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, 18449813 + ... + 18472626.

It is an arithmetic number, because the mean of its divisors is an integer number (30904082280).

Almost surely, 2^421174261673 is an apocalyptic number.

It is an amenable number.

421174261673 is a deficient number, since it is larger than the sum of its proper divisors (73291054807).

421174261673 is a wasteful number, since it uses less digits than its factorization.

421174261673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36922528.

The product of its digits is 338688, while the sum is 44.

The spelling of 421174261673 in words is "four hundred twenty-one billion, one hundred seventy-four million, two hundred sixty-one thousand, six hundred seventy-three".