42321513539 has 8 divisors (see below), whose sum is σ = 44568103440. Its totient is φ = 40076837856.

The previous prime is 42321513431. The next prime is 42321513541. The reversal of 42321513539 is 93531512324.

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 42321513539 - 2²⁸ = 42053078083 is a prime.

It is a super-2 number, since 2×42321513539² (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 (42321513569) 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, 433052 + ... + 521705.

It is an arithmetic number, because the mean of its divisors is an integer number (5571012930).

Almost surely, 2^42321513539 is an apocalyptic number.

42321513539 is a deficient number, since it is larger than the sum of its proper divisors (2246589901).

42321513539 is a wasteful number, since it uses less digits than its factorization.

42321513539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957109.

The product of its digits is 97200, while the sum is 38.

The spelling of 42321513539 in words is "forty-two billion, three hundred twenty-one million, five hundred thirteen thousand, five hundred thirty-nine".