423784431657454 has 32 divisors (see below), whose sum is σ = 729793351397376. Its totient is φ = 180795567775680.

The previous prime is 423784431657451. The next prime is 423784431657547. The reversal of 423784431657454 is 454756134487324.

It is a self number, because there is not a number n which added to its sum of digits gives 423784431657454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423784431657451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43129239 + ... + 52035565.

It is an arithmetic number, because the mean of its divisors is an integer number (22806042231168).

Almost surely, 2^{423784431657454} is an apocalyptic number.

423784431657454 is a deficient number, since it is larger than the sum of its proper divisors (306008919739922).

423784431657454 is a wasteful number, since it uses less digits than its factorization.

423784431657454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921800.

The product of its digits is 1083801600, while the sum is 67.

The spelling of 423784431657454 in words is "four hundred twenty-three trillion, seven hundred eighty-four billion, four hundred thirty-one million, six hundred fifty-seven thousand, four hundred fifty-four".