42138600000 has 672 divisors, whose sum is σ = 162549596160. Its totient is φ = 9434880000.

The previous prime is 42138599999. The next prime is 42138600059. The reversal of 42138600000 is 683124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 331799937 + ... + 331800063.

It is an arithmetic number, because the mean of its divisors is an integer number (241889280).

Almost surely, 2^42138600000 is an apocalyptic number.

42138600000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42138600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81274798080).

42138600000 is an abundant number, since it is smaller than the sum of its proper divisors (120410996160).

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

42138600000 is an equidigital number, since it uses as much as digits as its factorization.

42138600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 42138600000 in words is "forty-two billion, one hundred thirty-eight million, six hundred thousand".