42454455445424 has 120 divisors (see below), whose sum is σ = 91323542148384. Its totient is φ = 19103217408000.

The previous prime is 42454455445403. The next prime is 42454455445427.

It is a happy number.

42454455445424 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 42454455445424.

It is not an unprimeable number, because it can be changed into a prime (42454455445427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1473740429 + ... + 1473769235.

Almost surely, 2^{42454455445424} is an apocalyptic number.

42454455445424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42454455445424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45661771074192).

42454455445424 is an abundant number, since it is smaller than the sum of its proper divisors (48869086702960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42454455445424 is a wasteful number, since it uses less digits than its factorization.

42454455445424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36475 (or 36458 counting only the distinct ones).

The product of its digits is 163840000, while the sum is 56.

The spelling of 42454455445424 in words is "forty-two trillion, four hundred fifty-four billion, four hundred fifty-five million, four hundred forty-five thousand, four hundred twenty-four".