42846847585257 has 4 divisors (see below), whose sum is σ = 57129130113680. Its totient is φ = 28564565056836.

The previous prime is 42846847585249. The next prime is 42846847585277. The reversal of 42846847585257 is 75258574864824.

42846847585257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 42846847585257 - 2³ = 42846847585249 is a prime.

It is a super-2 number, since 2×42846847585257² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42846847585247) 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, 7141141264207 + ... + 7141141264212.

It is an arithmetic number, because the mean of its divisors is an integer number (14282282528420).

Almost surely, 2^{42846847585257} is an apocalyptic number.

It is an amenable number.

42846847585257 is a deficient number, since it is larger than the sum of its proper divisors (14282282528423).

42846847585257 is a wasteful number, since it uses less digits than its factorization.

42846847585257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282282528422.

The product of its digits is 4816896000, while the sum is 75.

The spelling of 42846847585257 in words is "forty-two trillion, eight hundred forty-six billion, eight hundred forty-seven million, five hundred eighty-five thousand, two hundred fifty-seven".