42015323409 has 8 divisors (see below), whose sum is σ = 58968875040. Its totient is φ = 26535993696.

The previous prime is 42015323407. The next prime is 42015323431. The reversal of 42015323409 is 90432351024.

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

It is not a de Polignac number, because 42015323409 - 2¹ = 42015323407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42015323409.

It is not an unprimeable number, because it can be changed into a prime (42015323407) 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 7 ways as a sum of consecutive naturals, for example, 368555412 + ... + 368555525.

It is an arithmetic number, because the mean of its divisors is an integer number (7371109380).

Almost surely, 2^42015323409 is an apocalyptic number.

It is an amenable number.

42015323409 is a deficient number, since it is larger than the sum of its proper divisors (16953551631).

42015323409 is a wasteful number, since it uses less digits than its factorization.

42015323409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737110959.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 42015323409 in words is "forty-two billion, fifteen million, three hundred twenty-three thousand, four hundred nine".