42647035243 has 4 divisors (see below), whose sum is σ = 42767848728. Its totient is φ = 42526221760.

The previous prime is 42647035187. The next prime is 42647035271. The reversal of 42647035243 is 34253074624.

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 42647035243 - 2²⁹ = 42110164331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42647035196 and 42647035205.

It is not an unprimeable number, because it can be changed into a prime (42647735243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60406213 + ... + 60406918.

It is an arithmetic number, because the mean of its divisors is an integer number (10691962182).

Almost surely, 2^42647035243 is an apocalyptic number.

42647035243 is a deficient number, since it is larger than the sum of its proper divisors (120813485).

42647035243 is a wasteful number, since it uses less digits than its factorization.

42647035243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120813484.

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 42647035243 in words is "forty-two billion, six hundred forty-seven million, thirty-five thousand, two hundred forty-three".