42807438445 has 8 divisors (see below), whose sum is σ = 51378448536. Its totient is φ = 34239602496.

The previous prime is 42807438433. The next prime is 42807438451. The reversal of 42807438445 is 54483470824.

It can be written as a sum of positive squares in 4 ways, for example, as 2466314244 + 40341124201 = 49662^2 + 200851^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42807438445 - 2⁵ = 42807438413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763762 + ... + 817891.

It is an arithmetic number, because the mean of its divisors is an integer number (6422306067).

Almost surely, 2^42807438445 is an apocalyptic number.

It is an amenable number.

42807438445 is a deficient number, since it is larger than the sum of its proper divisors (8571010091).

42807438445 is a wasteful number, since it uses less digits than its factorization.

42807438445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587071.

The product of its (nonzero) digits is 3440640, while the sum is 49.

The spelling of 42807438445 in words is "forty-two billion, eight hundred seven million, four hundred thirty-eight thousand, four hundred forty-five".