42145440000 has 180 divisors, whose sum is σ = 140167144656. Its totient is φ = 11238656000.

The previous prime is 42145439971. The next prime is 42145440011. The reversal of 42145440000 is 4454124.

It is a happy number.

It is a super-2 number, since 2×42145440000² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 436099 + ... + 523901.

Almost surely, 2^42145440000 is an apocalyptic number.

42145440000 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 42145440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70083572328).

42145440000 is an abundant number, since it is smaller than the sum of its proper divisors (98021704656).

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

42145440000 is an frugal number, since it uses more digits than its factorization.

42145440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87842 (or 87813 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 42145440000 its reverse (4454124), we get a palindrome (42149894124).

The spelling of 42145440000 in words is "forty-two billion, one hundred forty-five million, four hundred forty thousand".