42847631357117 has 4 divisors (see below), whose sum is σ = 42999036415200. Its totient is φ = 42696226299036.

The previous prime is 42847631357087. The next prime is 42847631357131. The reversal of 42847631357117 is 71175313674824.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 42847631357117 - 2⁸ = 42847631356861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847631387117) 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, 75702528617 + ... + 75702529182.

It is an arithmetic number, because the mean of its divisors is an integer number (10749759103800).

Almost surely, 2^{42847631357117} is an apocalyptic number.

It is an amenable number.

42847631357117 is a deficient number, since it is larger than the sum of its proper divisors (151405058083).

42847631357117 is a wasteful number, since it uses less digits than its factorization.

42847631357117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151405058082.

The product of its digits is 23708160, while the sum is 59.

The spelling of 42847631357117 in words is "forty-two trillion, eight hundred forty-seven billion, six hundred thirty-one million, three hundred fifty-seven thousand, one hundred seventeen".