423855459790 has 64 divisors (see below), whose sum is σ = 904724328960. Its totient is φ = 139886651520.

The previous prime is 423855459743. The next prime is 423855459793. The reversal of 423855459790 is 97954558324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423855459793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356529 + ... + 987331.

It is an arithmetic number, because the mean of its divisors is an integer number (14136317640).

Almost surely, 2^423855459790 is an apocalyptic number.

423855459790 is an abundant number, since it is smaller than the sum of its proper divisors (480868869170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423855459790 is a wasteful number, since it uses less digits than its factorization.

423855459790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631177.

The product of its (nonzero) digits is 54432000, while the sum is 61.

The spelling of 423855459790 in words is "four hundred twenty-three billion, eight hundred fifty-five million, four hundred fifty-nine thousand, seven hundred ninety".