42342015421000 has 64 divisors (see below), whose sum is σ = 99101880100080. Its totient is φ = 16933120012800.

The previous prime is 42342015420989. The next prime is 42342015421003. The reversal of 42342015421000 is 12451024324.

It can be written as a sum of positive squares in 8 ways, for example, as 5177800128484 + 37164215292516 = 2275478^2 + 6096246^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42342015421000.

It is not an unprimeable number, because it can be changed into a prime (42342015421003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8397 + ... + 9202396.

Almost surely, 2^{42342015421000} is an apocalyptic number.

42342015421000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42342015421000 is an abundant number, since it is smaller than the sum of its proper divisors (56759864679080).

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

42342015421000 is a wasteful number, since it uses less digits than its factorization.

42342015421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215411 (or 9215397 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 42342015421000 its reverse (12451024324), we get a palindrome (42354466445324).

The spelling of 42342015421000 in words is "forty-two trillion, three hundred forty-two billion, fifteen million, four hundred twenty-one thousand".