42847387238445 has 32 divisors (see below), whose sum is σ = 69397229865600. Its totient is φ = 22573164453120.

The previous prime is 42847387238441. The next prime is 42847387238449. The reversal of 42847387238445 is 54483278374824.

42847387238445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42847387238441) and next prime (42847387238449).

It is not a de Polignac number, because 42847387238445 - 2² = 42847387238441 is a prime.

It is a super-2 number, since 2×42847387238445² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42847387238445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847387238441) 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 31 ways as a sum of consecutive naturals, for example, 52554279 + ... + 53363348.

It is an arithmetic number, because the mean of its divisors is an integer number (2168663433300).

Almost surely, 2^{42847387238445} is an apocalyptic number.

It is an amenable number.

42847387238445 is a deficient number, since it is larger than the sum of its proper divisors (26549842627155).

42847387238445 is a wasteful number, since it uses less digits than its factorization.

42847387238445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105917965.

The product of its digits is 1156055040, while the sum is 69.

The spelling of 42847387238445 in words is "forty-two trillion, eight hundred forty-seven billion, three hundred eighty-seven million, two hundred thirty-eight thousand, four hundred forty-five".