42421455499 has 8 divisors (see below), whose sum is σ = 42557808960. Its totient is φ = 42285215616.

The previous prime is 42421455497. The next prime is 42421455509. The reversal of 42421455499 is 99455412424.

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 42421455499 - 2¹ = 42421455497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42421455497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754197 + ... + 808489.

It is an arithmetic number, because the mean of its divisors is an integer number (5319726120).

Almost surely, 2^42421455499 is an apocalyptic number.

42421455499 is a deficient number, since it is larger than the sum of its proper divisors (136353461).

42421455499 is a wasteful number, since it uses less digits than its factorization.

42421455499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56789.

The product of its digits is 2073600, while the sum is 49.

The spelling of 42421455499 in words is "forty-two billion, four hundred twenty-one million, four hundred fifty-five thousand, four hundred ninety-nine".