438500942089 has 32 divisors (see below), whose sum is σ = 531484611840. Its totient is φ = 353769292800.

The previous prime is 438500942057. The next prime is 438500942101. The reversal of 438500942089 is 980249005834.

It is not a de Polignac number, because 438500942089 - 2⁵ = 438500942057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438500942039) 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, 10974742 + ... + 11014624.

It is an arithmetic number, because the mean of its divisors is an integer number (16608894120).

Almost surely, 2^438500942089 is an apocalyptic number.

It is an amenable number.

438500942089 is a deficient number, since it is larger than the sum of its proper divisors (92983669751).

438500942089 is a wasteful number, since it uses less digits than its factorization.

438500942089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41281.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 438500942089 in words is "four hundred thirty-eight billion, five hundred million, nine hundred forty-two thousand, eighty-nine".