42243600857 has 4 divisors (see below), whose sum is σ = 42254540160. Its totient is φ = 42232661556.

The previous prime is 42243600851. The next prime is 42243600863. The reversal of 42243600857 is 75800634224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42243600851) and next prime (42243600863).

It is a cyclic number.

It is not a de Polignac number, because 42243600857 - 2¹⁰ = 42243599833 is a prime.

It is a super-2 number, since 2×42243600857² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243600851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5463857 + ... + 5471582.

It is an arithmetic number, because the mean of its divisors is an integer number (10563635040).

Almost surely, 2^42243600857 is an apocalyptic number.

It is an amenable number.

42243600857 is a deficient number, since it is larger than the sum of its proper divisors (10939303).

42243600857 is a wasteful number, since it uses less digits than its factorization.

42243600857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939302.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 42243600857 in words is "forty-two billion, two hundred forty-three million, six hundred thousand, eight hundred fifty-seven".