42807438393 has 8 divisors (see below), whose sum is σ = 57131841888. Its totient is φ = 28510663584.

The previous prime is 42807438391. The next prime is 42807438413. The reversal of 42807438393 is 39383470824.

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

It is not a de Polignac number, because 42807438393 - 2¹ = 42807438391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42807438391) 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, 6903555 + ... + 6909752.

It is an arithmetic number, because the mean of its divisors is an integer number (7141480236).

Almost surely, 2^42807438393 is an apocalyptic number.

It is an amenable number.

42807438393 is a deficient number, since it is larger than the sum of its proper divisors (14324403495).

42807438393 is a wasteful number, since it uses less digits than its factorization.

42807438393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814343.

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 42807438393 in words is "forty-two billion, eight hundred seven million, four hundred thirty-eight thousand, three hundred ninety-three".