40838511218 has 8 divisors (see below), whose sum is σ = 62561123712. Its totient is φ = 19984803316.

The previous prime is 40838511173. The next prime is 40838511223. The reversal of 40838511218 is 81211583804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217226030 + ... + 217226217.

It is an arithmetic number, because the mean of its divisors is an integer number (7820140464).

Almost surely, 2^40838511218 is an apocalyptic number.

40838511218 is a deficient number, since it is larger than the sum of its proper divisors (21722612494).

40838511218 is a wasteful number, since it uses less digits than its factorization.

40838511218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434452296.

The product of its (nonzero) digits is 61440, while the sum is 41.

The spelling of 40838511218 in words is "forty billion, eight hundred thirty-eight million, five hundred eleven thousand, two hundred eighteen".