423784431657452 has 6 divisors (see below), whose sum is σ = 741622755400548. Its totient is φ = 211892215828724.

The previous prime is 423784431657451. The next prime is 423784431657547. The reversal of 423784431657452 is 254756134487324.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52973053957178 + ... + 52973053957185.

It is an arithmetic number, because the mean of its divisors is an integer number (123603792566758).

Almost surely, 2^{423784431657452} is an apocalyptic number.

It is an amenable number.

423784431657452 is a deficient number, since it is larger than the sum of its proper divisors (317838323743096).

423784431657452 is a wasteful number, since it uses less digits than its factorization.

423784431657452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105946107914367 (or 105946107914365 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 65.

The spelling of 423784431657452 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-two".