421772033847 has 8 divisors (see below), whose sum is σ = 565730153856. Its totient is φ = 279497634872.

The previous prime is 421772033821. The next prime is 421772033869. The reversal of 421772033847 is 748330277124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421772033847 - 2¹⁹ = 421771509559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421772033796 and 421772033805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421772031847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420929673 + ... + 420930674.

It is an arithmetic number, because the mean of its divisors is an integer number (70716269232).

Almost surely, 2^421772033847 is an apocalyptic number.

421772033847 is a deficient number, since it is larger than the sum of its proper divisors (143958120009).

421772033847 is a wasteful number, since it uses less digits than its factorization.

421772033847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841860517.

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 421772033847 in words is "four hundred twenty-one billion, seven hundred seventy-two million, thirty-three thousand, eight hundred forty-seven".