438152644506 has 16 divisors (see below), whose sum is σ = 897678589248. Its totient is φ = 142488664800.

The previous prime is 438152644499. The next prime is 438152644511. The reversal of 438152644506 is 605446251834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890553910 + ... + 890554401.

It is an arithmetic number, because the mean of its divisors is an integer number (56104911828).

Almost surely, 2^438152644506 is an apocalyptic number.

438152644506 is an abundant number, since it is smaller than the sum of its proper divisors (459525944742).

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

438152644506 is a wasteful number, since it uses less digits than its factorization.

438152644506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781108357.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 438152644506 in words is "four hundred thirty-eight billion, one hundred fifty-two million, six hundred forty-four thousand, five hundred six".