42847157645117 has 16 divisors (see below), whose sum is σ = 49053930666624. Its totient is φ = 36661848696000.

The previous prime is 42847157645113. The next prime is 42847157645147. The reversal of 42847157645117 is 71154675174824.

It is a cyclic number.

It is not a de Polignac number, because 42847157645117 - 2² = 42847157645113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42847157645117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847157645113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18384767 + ... + 20583827.

It is an arithmetic number, because the mean of its divisors is an integer number (3065870666664).

Almost surely, 2^{42847157645117} is an apocalyptic number.

It is an amenable number.

42847157645117 is a deficient number, since it is larger than the sum of its proper divisors (6206773021507).

42847157645117 is a wasteful number, since it uses less digits than its factorization.

42847157645117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203940.

The product of its digits is 52684800, while the sum is 62.

The spelling of 42847157645117 in words is "forty-two trillion, eight hundred forty-seven billion, one hundred fifty-seven million, six hundred forty-five thousand, one hundred seventeen".