42102421009 has 8 divisors (see below), whose sum is σ = 47513704320. Its totient is φ = 36955102800.

The previous prime is 42102421001. The next prime is 42102421019. The reversal of 42102421009 is 90012420124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42102421009 - 2³ = 42102421001 is a prime.

It is a super-2 number, since 2×42102421009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42102421001) 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, 65990937 + ... + 65991574.

It is an arithmetic number, because the mean of its divisors is an integer number (5939213040).

Almost surely, 2^42102421009 is an apocalyptic number.

It is an amenable number.

42102421009 is a deficient number, since it is larger than the sum of its proper divisors (5411283311).

42102421009 is a wasteful number, since it uses less digits than its factorization.

42102421009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131982551.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 42102421009 in words is "forty-two billion, one hundred two million, four hundred twenty-one thousand, nine".