438132446913 has 16 divisors (see below), whose sum is σ = 667646967680. Its totient is φ = 250355183616.

The previous prime is 438132446903. The next prime is 438132446953. The reversal of 438132446913 is 319644231834.

It is a happy number.

It is not a de Polignac number, because 438132446913 - 2⁶ = 438132446849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438132446903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687681 + ... + 1161537.

It is an arithmetic number, because the mean of its divisors is an integer number (41727935480).

Almost surely, 2^438132446913 is an apocalyptic number.

It is an amenable number.

438132446913 is a deficient number, since it is larger than the sum of its proper divisors (229514520767).

438132446913 is a wasteful number, since it uses less digits than its factorization.

438132446913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517896.

The product of its digits is 1492992, while the sum is 48.

The spelling of 438132446913 in words is "four hundred thirty-eight billion, one hundred thirty-two million, four hundred forty-six thousand, nine hundred thirteen".