42605221047 has 8 divisors (see below), whose sum is σ = 56807942640. Its totient is φ = 28402990080.

The previous prime is 42605221031. The next prime is 42605221073. The reversal of 42605221047 is 74012250624.

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

It is not a de Polignac number, because 42605221047 - 2⁴ = 42605221031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42605220999 and 42605221017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42605221027) 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, 205047 + ... + 356727.

It is an arithmetic number, because the mean of its divisors is an integer number (7100992830).

Almost surely, 2^42605221047 is an apocalyptic number.

42605221047 is a deficient number, since it is larger than the sum of its proper divisors (14202721593).

42605221047 is a wasteful number, since it uses less digits than its factorization.

42605221047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245313.

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 42605221047 in words is "forty-two billion, six hundred five million, two hundred twenty-one thousand, forty-seven".