42255844341421 has 8 divisors (see below), whose sum is σ = 42272323632000. Its totient is φ = 42239365600032.

The previous prime is 42255844341343. The next prime is 42255844341427. The reversal of 42255844341421 is 12414344855224.

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 42255844341421 - 2⁴⁵ = 7071472252589 is a prime.

It is a super-2 number, since 2×42255844341421² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42255844341427) 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, 224373705 + ... + 224561953.

It is an arithmetic number, because the mean of its divisors is an integer number (5284040454000).

Almost surely, 2^{42255844341421} is an apocalyptic number.

It is an amenable number.

42255844341421 is a deficient number, since it is larger than the sum of its proper divisors (16479290579).

42255844341421 is a wasteful number, since it uses less digits than its factorization.

42255844341421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274595.

The product of its digits is 4915200, while the sum is 49.

The spelling of 42255844341421 in words is "forty-two trillion, two hundred fifty-five billion, eight hundred forty-four million, three hundred forty-one thousand, four hundred twenty-one".