42054417243 has 8 divisors (see below), whose sum is σ = 62302840400. Its totient is φ = 28036278144.

The previous prime is 42054417191. The next prime is 42054417257. The reversal of 42054417243 is 34271445024.

42054417243 is a `hidden beast` number, since 4 + 2 + 0 + 544 + 1 + 72 + 43 = 666.

It is not a de Polignac number, because 42054417243 - 2⁶ = 42054417179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42054417198 and 42054417207.

It is not an unprimeable number, because it can be changed into a prime (42054415243) 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, 778785478 + ... + 778785531.

It is an arithmetic number, because the mean of its divisors is an integer number (7787855050).

Almost surely, 2^42054417243 is an apocalyptic number.

42054417243 is a deficient number, since it is larger than the sum of its proper divisors (20248423157).

42054417243 is a wasteful number, since it uses less digits than its factorization.

42054417243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557571018 (or 1557571012 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 42054417243 in words is "forty-two billion, fifty-four million, four hundred seventeen thousand, two hundred forty-three".