42877891753 has 2 divisors, whose sum is σ = 42877891754. Its totient is φ = 42877891752.

The previous prime is 42877891729. The next prime is 42877891843. The reversal of 42877891753 is 35719877824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38803878169 + 4074013584 = 196987^2 + 63828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42877891753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42877891691 and 42877891700.

It is not a weakly prime, because it can be changed into another prime (42877891153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21438945876 + 21438945877.

It is an arithmetic number, because the mean of its divisors is an integer number (21438945877).

Almost surely, 2^42877891753 is an apocalyptic number.

It is an amenable number.

42877891753 is a deficient number, since it is larger than the sum of its proper divisors (1).

42877891753 is an equidigital number, since it uses as much as digits as its factorization.

42877891753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 61.

The spelling of 42877891753 in words is "forty-two billion, eight hundred seventy-seven million, eight hundred ninety-one thousand, seven hundred fifty-three".