42421003451 has 8 divisors (see below), whose sum is σ = 42543432000. Its totient is φ = 42298630920.

The previous prime is 42421003439. The next prime is 42421003517. The reversal of 42421003451 is 15430012424.

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 42421003451 - 2²⁶ = 42353894587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42421003451.

It is not an unprimeable number, because it can be changed into a prime (42421003411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857500 + ... + 1880198.

It is an arithmetic number, because the mean of its divisors is an integer number (5317929000).

Almost surely, 2^42421003451 is an apocalyptic number.

42421003451 is a deficient number, since it is larger than the sum of its proper divisors (122428549).

42421003451 is a wasteful number, since it uses less digits than its factorization.

42421003451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28009.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 42421003451 its reverse (15430012424), we get a palindrome (57851015875).

The spelling of 42421003451 in words is "forty-two billion, four hundred twenty-one million, three thousand, four hundred fifty-one".