42104214138 has 64 divisors (see below), whose sum is σ = 100599662592. Its totient is φ = 11486439360.

The previous prime is 42104214133. The next prime is 42104214179. The reversal of 42104214138 is 83141240124.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42104214133) 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, 513420 + ... + 589752.

It is an arithmetic number, because the mean of its divisors is an integer number (1571869728).

Almost surely, 2^42104214138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42104214138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50299831296).

42104214138 is an abundant number, since it is smaller than the sum of its proper divisors (58495448454).

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

42104214138 is a wasteful number, since it uses less digits than its factorization.

42104214138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76939.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 42104214138 in words is "forty-two billion, one hundred four million, two hundred fourteen thousand, one hundred thirty-eight".