42455420043 has 4 divisors (see below), whose sum is σ = 56607226728. Its totient is φ = 28303613360.

The previous prime is 42455420041. The next prime is 42455420107. The reversal of 42455420043 is 34002455424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42455420043 - 2¹ = 42455420041 is a prime.

It is a super-2 number, since 2×42455420043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42455419986 and 42455420013.

It is not an unprimeable number, because it can be changed into a prime (42455420041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7075903338 + ... + 7075903343.

It is an arithmetic number, because the mean of its divisors is an integer number (14151806682).

Almost surely, 2^42455420043 is an apocalyptic number.

42455420043 is a deficient number, since it is larger than the sum of its proper divisors (14151806685).

42455420043 is a wasteful number, since it uses less digits than its factorization.

42455420043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14151806684.

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 42455420043 its reverse (34002455424), we get a palindrome (76457875467).

The spelling of 42455420043 in words is "forty-two billion, four hundred fifty-five million, four hundred twenty thousand, forty-three".