42454617405 has 8 divisors (see below), whose sum is σ = 67927387872. Its totient is φ = 22642462608.

The previous prime is 42454617391. The next prime is 42454617407. The reversal of 42454617405 is 50471645424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42454617405 - 2¹⁶ = 42454551869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42454617407) 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, 1415153899 + ... + 1415153928.

It is an arithmetic number, because the mean of its divisors is an integer number (8490923484).

Almost surely, 2^42454617405 is an apocalyptic number.

It is an amenable number.

42454617405 is a deficient number, since it is larger than the sum of its proper divisors (25472770467).

42454617405 is a wasteful number, since it uses less digits than its factorization.

42454617405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830307835.

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 42454617405 in words is "forty-two billion, four hundred fifty-four million, six hundred seventeen thousand, four hundred five".