42043471677 has 6 divisors (see below), whose sum is σ = 60729459102. Its totient is φ = 28028981112.

The previous prime is 42043471669. The next prime is 42043471721. The reversal of 42043471677 is 77617434024.

It can be written as a sum of positive squares in only one way, i.e., 40151743641 + 1891728036 = 200379^2 + 43494^2 .

It is not a de Polignac number, because 42043471677 - 2³ = 42043471669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043471627) 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 5 ways as a sum of consecutive naturals, for example, 2335748418 + ... + 2335748435.

It is an arithmetic number, because the mean of its divisors is an integer number (10121576517).

Almost surely, 2^42043471677 is an apocalyptic number.

It is an amenable number.

42043471677 is a deficient number, since it is larger than the sum of its proper divisors (18685987425).

42043471677 is a wasteful number, since it uses less digits than its factorization.

42043471677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671496859 (or 4671496856 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 45.

It can be divided in two parts, 4204347 and 1677, that added together give a palindrome (4206024).

The spelling of 42043471677 in words is "forty-two billion, forty-three million, four hundred seventy-one thousand, six hundred seventy-seven".