423827121506 has 32 divisors (see below), whose sum is σ = 662867755200. Its totient is φ = 203061841920.

The previous prime is 423827121503. The next prime is 423827121527. The reversal of 423827121506 is 605121728324.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (423827121503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5540225 + ... + 5616203.

It is an arithmetic number, because the mean of its divisors is an integer number (20714617350).

Almost surely, 2^423827121506 is an apocalyptic number.

423827121506 is a deficient number, since it is larger than the sum of its proper divisors (239040633694).

423827121506 is a wasteful number, since it uses less digits than its factorization.

423827121506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77234.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 423827121506 in words is "four hundred twenty-three billion, eight hundred twenty-seven million, one hundred twenty-one thousand, five hundred six".