42406444918 has 16 divisors (see below), whose sum is σ = 64594368000. Its totient is φ = 20876485032.

The previous prime is 42406444867. The next prime is 42406444919. The reversal of 42406444918 is 81944460424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42406444919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317088 + ... + 430531.

It is an arithmetic number, because the mean of its divisors is an integer number (4037148000).

Almost surely, 2^42406444918 is an apocalyptic number.

42406444918 is a deficient number, since it is larger than the sum of its proper divisors (22187923082).

42406444918 is a wasteful number, since it uses less digits than its factorization.

42406444918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748059.

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 42406444918 in words is "forty-two billion, four hundred six million, four hundred forty-four thousand, nine hundred eighteen".