42010204109 has 8 divisors (see below), whose sum is σ = 44485712568. Its totient is φ = 39535175680.

The previous prime is 42010204073. The next prime is 42010204147. The reversal of 42010204109 is 90140201024.

It can be written as a sum of positive squares in 4 ways, for example, as 566202025 + 41444002084 = 23795^2 + 203578^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42010204109 - 2⁸ = 42010203853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42010204309) 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, 68669 + ... + 297885.

It is an arithmetic number, because the mean of its divisors is an integer number (5560714071).

Almost surely, 2^42010204109 is an apocalyptic number.

It is an amenable number.

42010204109 is a deficient number, since it is larger than the sum of its proper divisors (2475508459).

42010204109 is a wasteful number, since it uses less digits than its factorization.

42010204109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240015.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 42010204109 in words is "forty-two billion, ten million, two hundred four thousand, one hundred nine".