423470805787 has 4 divisors (see below), whose sum is σ = 423475029400. Its totient is φ = 423466582176.

The previous prime is 423470805731. The next prime is 423470805833. The reversal of 423470805787 is 787508074324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423470805787 - 2¹⁹ = 423470281499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423470805727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957662 + ... + 2163187.

It is an arithmetic number, because the mean of its divisors is an integer number (105868757350).

Almost surely, 2^423470805787 is an apocalyptic number.

423470805787 is a deficient number, since it is larger than the sum of its proper divisors (4223613).

423470805787 is a wasteful number, since it uses less digits than its factorization.

423470805787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223612.

The product of its (nonzero) digits is 10536960, while the sum is 55.

The spelling of 423470805787 in words is "four hundred twenty-three billion, four hundred seventy million, eight hundred five thousand, seven hundred eighty-seven".