423784431657827 has 8 divisors (see below), whose sum is σ = 438398559627600. Its totient is φ = 409170361801824.

The previous prime is 423784431657787. The next prime is 423784431657833. The reversal of 423784431657827 is 728756134487324.

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 423784431657827 - 2¹⁴ = 423784431641443 is a prime.

It is a super-2 number, since 2×423784431657827² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423784431657427) 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, 573773 + ... + 29118689.

It is an arithmetic number, because the mean of its divisors is an integer number (54799819953450).

Almost surely, 2^{423784431657827} is an apocalyptic number.

423784431657827 is a deficient number, since it is larger than the sum of its proper divisors (14614127969773).

423784431657827 is a wasteful number, since it uses less digits than its factorization.

423784431657827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29056885.

The product of its digits is 1517322240, while the sum is 71.

The spelling of 423784431657827 in words is "four hundred twenty-three trillion, seven hundred eighty-four billion, four hundred thirty-one million, six hundred fifty-seven thousand, eight hundred twenty-seven".