42846828661877 has 2 divisors, whose sum is σ = 42846828661878. Its totient is φ = 42846828661876.

The previous prime is 42846828661837. The next prime is 42846828661913. The reversal of 42846828661877 is 77816682864824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42550559640241 + 296269021636 = 6523079^2 + 544306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42846828661877 is a prime.

It is a super-3 number, since 3×42846828661877³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42846828661798 and 42846828661807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42846828661837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21423414330938 + 21423414330939.

It is an arithmetic number, because the mean of its divisors is an integer number (21423414330939).

Almost surely, 2^{42846828661877} is an apocalyptic number.

It is an amenable number.

42846828661877 is a deficient number, since it is larger than the sum of its proper divisors (1).

42846828661877 is an equidigital number, since it uses as much as digits as its factorization.

42846828661877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2774532096, while the sum is 77.

The spelling of 42846828661877 in words is "forty-two trillion, eight hundred forty-six billion, eight hundred twenty-eight million, six hundred sixty-one thousand, eight hundred seventy-seven".